a rectangular field has side lenght that measure 9\10 mile and 1\2 mile. what is the area of the field?

We can be 90% confident that the true population variance of unemployed workers' math test scores falls between 65.61 and 197.57.

The first step in finding a 90% confidence interval for the population variance is to find the degrees of freedom for the sample. In this case, the degrees of freedom is 18 - 1 = 17.

Next, we need to find the critical value for a 90% confidence interval with 17 degrees of freedom. We can do this using a chi-squared distribution table. The critical values for a 90% confidence interval with 17 degrees of freedom are 8.671 and 27.488.

Now we can use the formula for a confidence interval for the population variance:

CI = [(n-1) * s²] / X²

Where n is the sample size, s is the sample standard deviation, and X^2 is the critical value from the chi-squared distribution table.

Plugging in the values we have:

CI = [(17) * (10.4)²] / X²

For the lower bound of the confidence interval, we use the smaller critical value:

CI = [(17) * (10.4)²] / 8.671

CI = 197.57

For the upper bound of the confidence interval, we use the larger critical value:

CI = [(17) * (10.4)²] / 27.488

CI = 65.61

So the 90% confidence interval for the population variance is (65.61, 197.57).

In conclusion, we can be 90% confident that the true population variance of unemployed workers' math test scores falls between 65.61 and 197.57.

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Answer:

35° and 55°

Step-by-step explanation:

(x - 20) and x form a right angle (90° ) and are complementary

complementary angles sum to 90° , then

x - 20 + x = 90

2x - 20 = 90 ( add 20 to both sides )

2x = 110 ( divide both sides by 2 )

x = 55

then the 2 angles are

x = 55°

x - 20 = 55 - 20 = 35°

Answer:

h ≤ 6

Step-by-step:

Let h be the height of the triangular pennant in inches.

The formula for the area of a triangle is:

A = 1/2 * base * height

We know that the base of the triangle is 10 inches, so we can substitute this value into the formula:

A = 1/2 * 10 * h

Simplifying this equation, we get:

A = 5h

We also know that the area of the pennant must be at most 30 square inches. So we can write:

A ≤ 30

Substituting the formula for the area, we get:

5h ≤ 30

Dividing both sides by 5, we get:

h ≤ 6

Therefore, the possible heights of the triangle must be at most 6 inches in order for the area of the pennant to be at most 30 square inches.

The inequality that describes the possible heights of the triangle is:

h ≤ 6

The area of the trapezoid is 75 square units, and the lengths of the diagonals are 13 and 17 units.

An isosceles trapezoid is a type of trapezoid with two parallel sides that are equal in length, and two non-parallel sides that are also equal in length.  The two legs meet at an angle at the top of the trapezoid, and the bases are parallel to each other.

To find the area of the trapezoid, we use the formula:

Area = (b1 + b2) * h / 2

where b1 and b2 are the lengths of the bases, and h is the height.

In this case, b1 = 9, b2 = 21, and h is the distance between the bases. Since the trapezoid is isosceles, the height is also the length of the two diagonals minus the sum of the two bases, divided by 2:

h = (d1 + d2 - b1 - b2) / 2

we will use the Pythagorean theorem:

d1² = h² + (b2 - b1/2)²

d2² = h² + (b2 + b1/2)²

Plugging in the values we get:

h = (d1 + d2 - 9 - 21) / 2

h = (d1 + d2 - 30) / 2

d1² = h² + (21 - 9/2)²

d2² = h² + (21 + 9/2)²

Simplifying, we get:

h = (d1 + d2 - 30) / 2

d1² = h² + 225/4

d2² = h² + 529/4

Substituting the first equation into the other two, we get a system of two equations in two variables:

d1² = ((d1 + d2 - 30) / 2)² + 225/4

d2² = ((d1 + d2 - 30) / 2)² + 529/4

Simplifying and solving for d1 and d2, we get:

d1 = 13

d2 = 17

To find the area, we plug in the values of the bases and the height:

h = (d1 + d2 - 30) / 2 = (13 + 17 - 30) / 2 = 5

Area = (b1 + b2) * h / 2 = (9 + 21) * 5 / 2 = 75

Therefore, the area of the trapezoid is 75 square units, and the lengths of the diagonals are 13 and 17 units.

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The degree of the function (1)/(2)=(x+2)(x-1)^(2)(5x-2) is 4, as there are 4 total x terms in the equation.

The end behavior of the function is determined by the leading term, which is (1/2)(5x^4). As the degree is even and the leading coefficient is positive, the end behavior is that the function will rise to the right and rise to the left.

The x-intercepts of the function are the values of x that make the function equal to zero. These can be found by setting each factor equal to zero and solving for x:

x+2=0 -> x=-2

x-1=0 -> x=1

5x-2=0 -> x=2/5

The x-intercepts are -2, 1, and 2/5.

The y-intercept is the value of the function when x=0. Plugging in 0 for x gives:

(1/2)(0+2)(0-1)^2(5(0)-2) = (1/2)(2)(-1)^2(-2) = -2

The y-intercept is -2.

The zeroes of multiplicity are the values of x that make the function equal to zero and the number of times they appear as a factor in the equation. In this case, the zeroes of multiplicity are:

-2 with a multiplicity of 1

1 with a multiplicity of 2

2/5 with a multiplicity of 1

A few midinterval points can be found by plugging in values of x between the x-intercepts and solving for the function value. For example, plugging in x=0.5 gives:

(1/2)(0.5+2)(0.5-1)^2(5(0.5)-2) = (1/2)(2.5)(-0.5)^2(-0.5) = -0.3125

So one midinterval point is (0.5, -0.3125).

Another midinterval point can be found by plugging in x=-1:

(1/2)(-1+2)(-1-1)^2(5(-1)-2) = (1/2)(1)(-2)^2(-7) = -7

So another midinterval point is (-1, -7).

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To reduce 95 ounces of a 27% solution of potassium chloride to a 19% solution, you must add 28.6 ounces of water.

To calculate this, you can use the formula M1V1 = M2V2, where M1 is the initial concentration, V1 is the initial volume, M2 is the desired concentration, and V2 is the desired volume.

So, M1 = 27%, V1 = 95 ounces, M2 = 19%, and V2 = (95 + V2) ounces.

Plugging this into the formula, you get 27(95) = 19(95 + V2). Solving for V2, you get V2 = 28.6 ounces, which is the amount of water you must add.

The equation (M1V1=M2V2) represents the dilution equation in chemistry. “Dilution is the process of decreasing the concentration of a solute in a solution, usually simply by mixing with more solvent like adding more water to the solution.”

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Answer: 54 cups of sugar

Step-by-step explanation:

part A  add 3 each time

1=3

2=6

3=9

4=12

5=15

6=18

Part B

1x3 per pie

so if there is 70 pies do 70x3

Part C]

if you do 18 and since you need 3 cups of sugar per pie

do 18 times 3 to get a total of 54 cups of sugar

18x3=54

The solution(s) of the equation are x = 0 and the solutions of the cubic equation x^(3)+3x^(2)+25x+75 = 0.

The solution(s) of the equation can be found by rearranging the terms and then factoring. Here are the steps:

Step 1: Rearrange the terms to have all the x terms on one side of the equation:
-4x^(4)+25x^(2)+75x+5x^(4)+3x^(3) = 0

Step 2: Combine like terms:
x^(4)+3x^(3)+25x^(2)+75x = 0

Step 3: Factor out the common factor of x:
x(x^(3)+3x^(2)+25x+75) = 0

Step 4: Use the zero product property to find the solutions:
x = 0 or x^(3)+3x^(2)+25x+75 = 0

The first solution is x = 0. The other solutions can be found by solving the cubic equation x^(3)+3x^(2)+25x+75 = 0. This equation does not have any rational solutions, so the solutions will be irrational or complex.

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Answer:

  x = 10.1

Step-by-step explanation:

You want the value of x in the given secant-tangent geometry.

The angle between the secant ON and the tangent MN is half the measure of arc ON. The measure of arc ON is the remainder of the circle after long arc ON = 283° is subtracted:

  arc ON = 360° -283° = 77°

  (5x -12)° = 1/2(77°) . . . . . relation of angle to arc

  10x -24 = 77 . . . . . . . . divide by °, multiply by 2

  10x = 101 . . . . . . . . . . add 24

  x = 10.1 . . . . . . . . . . divide by 10

Step-by-step explanation:

A + B = 437

A - B = 415 (for that sequence it is important to know that A is larger than B).

A = 415 + B

that we use now in the first equation :

415 + B + B = 437

2B = 22

B = 11

A = 415 + B = 415 + 11 = 426 tons

B = 11 tons

The polynomial expression in standard form is -13x^(4)+5x.

A polynomial is an expression consisting of variables (or indeterminates) and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.

The polynomial expression in standard form is -13x^(4)+6x-x. To write a polynomial expression in standard form, we need to rearrange the terms in descending order of their degree (exponent). We also need to combine any like terms.

First, we can rearrange the terms in descending order of their degree:
-8x^(4)-5x^(4)+6x-x

Next, we can combine the like terms:
-13x^(4)+6x-x

Finally, we can simplify the expression:
-13x^(4)+5x

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Answer: +-root15/2

To find the x-intercepts, set the function equal to 0 and solve for x.

0.8x^2 - 3 = 0

0.8x^2 = 3

x^2 = 15/4

x = +- root15/2

terms of time t.

A. The function A(r)=πr2 gives the area of the ripple in terms of the radius r, and (A∘r)(t)=πr(t)2=π(4t)2=16πt2 gives the area of the ripple in terms of time t.

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The equation that is equivalent to 52 = -4 (2n + 1) is C) -52/4 = 2n + 1.

Starting with the given equation:

52 = -4 (2n + 1)

First, we can simplify the right-hand side of the equation by distributing the -4:

52 = -8n - 4

Then, we can isolate the variable (n) by adding 4 to both sides of the equation:

56 = -8n

Finally, we can solve for n by dividing both sides by -8:

-7 = n

Therefore, we have found that the solution to the equation 52 = -4 (2n + 1) is n = -7.

Now, let's check each of the answer choices to see if they are equivalent to this solution:

A) 13 = -2 (2n + 1)

If we simplify the right-hand side of this equation, we get:

13 = -4n - 2

Then, if we add 2 to both sides and divide by -4, we get:

-3.75 = n

This solution is not equivalent to n = -7, so this equation is not equivalent to the original equation.

B) -7 = -2 (2n + 1)

If we simplify the right-hand side of this equation, we get:

-7 = -4n - 2

Then, if we add 2 to both sides and divide by -4, we get:

1.25 = n

This solution is not equivalent to n = -7, so this equation is not equivalent to the original equation.

C) -52/4 = 2n + 1

If we simplify the left-hand side of this equation, we get:

-13 = 2n + 1

Then, if we subtract 1 from both sides and divide by 2, we get:

-7 = n

This solution is equivalent to n = -7, so this equation is equivalent to the original equation.

D) -13 = -4 (2n + 1)

If we simplify the right-hand side of this equation, we get:

-13 = -8n - 4

Then, if we add 4 to both sides and divide by -8, we get:

1.875 = n

This solution is not equivalent to n = -7, so this equation is not equivalent to the original equation.

Therefore, the equation that is equivalent to 52 = -4 (2n + 1) is C) -52/4 = 2n + 1.

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Simplified expression of (5t^(3))/(-25t)| is (1/5)( [tex]t^{2}[/tex] ).

To simplify the expression |(5[tex]t^{(3))}[/tex]/(-25t)|, we need to follow these steps:

1. Start by simplifying the fraction inside the absolute value signs.

2. The 5 in the numerator and the 25 in the denominator can be reduced to 1/5.

3. The t in the denominator can be reduced with one of the t's in the numerator, leaving us with [tex]t^{2}[/tex] in the numerator. This gives us |(1/5)( [tex]t^{2}[/tex]))|.

5. The absolute value signs mean that we need to take the positive value of whatever is inside.

6. Since both 1/5 and [tex]t^{2}[/tex] are positive, we can remove the absolute value signs.

   This leaves us with (1/5)( [tex]t^{2}[/tex])) as our simplified expression.

So the final answer is (1/5)( [tex]t^{2}[/tex] ).

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Hence, to convert a number of months to a fractional portion of a year, linear function divide the number of months by either 6 or 12 to get the answer in terms of half-years or complete years.

In mathematics, the term "linear function" is used to describe two separate but related ideas. Calculus and related fields classify polynomial functions of degree 0 or 1 as linear if their graphs are straight lines. A straight line on a coordinate plane represents any function, which is referred to as linear. Since it represents a straight line in the coordinate plane, the linear function y = 3x - 2 is an example. As the function may be connected to y, it can be represented as f(x) = 3x - 2.

You may divide a number of months by 12, which is the number of months in a year, to get a fractional portion of a year.

Consider the case when you have nine months. Nine months are equal to 0.75 years when you divide nine by twelve. But, if you divide 9 by 6, you obtain a result of 1.5, indicating that 9 months are equal to 1.5 half-years or 1 year and 6 months.

Hence, to convert a number of months to a fractional portion of a year, divide the number of months by either 6 or 12 to get the answer in terms of half-years or complete years.

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The volume of a rectangular prism is -

V = Length x width x height

V = L x B x H

Volume is a collection of two - dimensional points enclosed by a single dimensional line. Mathematically, we can write -

V = ∫∫∫ F(x, y, z) dx dy dz

Given is a rectangular prism.

The volume of a rectangular prism is the measurement of the total space inside it. Since the image of the prism is not given, we can write the volume of a rectangular prism as -

V = Length x width x height

V = L x B x H

Therefore, the volume of a rectangular prism is -

V = Length x width x height

V = L x B x H

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The value of x is approximately 7.21 and the side lengths do not form a pythagorean triple.

The figure in the image is a right traingle.

We can use the Pythagorean theorem to solve for the missing leg of the right triangle:

a² + b² = c²

Where a and b are the legs of the triangle and c is the hypotenuse.

Plugging in the given values, we get:

12² + b² = 14²

144 + b² = 196

Subtracting 144 from both sides:

b² = 52

Taking the square root of both sides:

b = 7.21

Therefore, the second leg of the right triangle is approximately 7.21 units long.

This is not a Pythagorean triple because the three sides (12, 7.21, and 14) do not form a set of integers that satisfy the Pythagorean theorem.

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The sοlutiοn tο the given prοblem οf the triangle cοmes οut tο be triangle side lengths are multiples οf triangle side lengths is untrue.

A triangular is a pοlygοn because it has twο οr maybe mοre additiοnal sectiοns. It has a straightfοrward square fοrm. Only the edges A, B, but alsο C distinguishes a triangular frοm a parallelοgram. When the sides are nοt exactly cοllinear, Euclidean geοmetry prοduces a singular plane instead οf a cube. If a shape has three edges and three angles, it is said tο be triangular.

Here,

A cοllectiοn οf the three pοsitive integers a, b, and c knοwn as a Pythagοrean triple fulfill the fοrmula a² + b² = c², where c is the hypοtenuse length οf a right triangle οf legs οf length a and b.

Triangle has sides that are 6, 8, and 10 in length. The Pythagοrean Theοrem is satisfied by these three numbers:

6² + 8² = 36 + 64 = 100 = 10²

Triangle is a right triangle as a result, and its side lengths make a Pythagοrean triple.

Hence, The statement that triangle side lengths are multiples οf triangle side lengths is untrue.

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Answer:

$1.65

Step-by-step explanation:

9.7%×(11.73+5.27)

0.097×(11.73+5.27)

=1.649

to 2d.p

=1.65

Answer:

The object falls 4.9 meters in the first second, 14.7 meters in the second second, 24.5 meters in the third second, and 34.3 meters in the fourth second. We can see that the object is falling 9.8 meters per second per second, which is the acceleration due to gravity.

To find how far the object falls in 10 seconds, we can use the formula for the sum of an arithmetic sequence:

S = n/2(2a + (n-1)d)

where S is the sum of the sequence, n is the number of terms, a is the first term, and d is the common difference between the terms.

In this case, we have:

n = 10 (since we want to find the total distance in 10 seconds)

a = 4.9 (the first term is the distance fallen in the first second)

d = 9.8 (the common difference is the acceleration due to gravity)

Plugging in these values, we get:

S = 10/2(2(4.9) + (10-1)9.8) = 10/2(9.8 + 88.2) = 10/2(98) = 490

Therefore, the object will fall a total of 490 meters in 10 seconds.

The object will fall 495 meters in 10 seconds.

It is a sequence where the difference between each consecutive term is the same.

We have,

We can see that the object is falling with a constant acceleration of 9.8 meters per second squared (which is the acceleration due to gravity near the surface of the Earth).

Each second, the distance the object falls increases by an additional 9.8 meters.

So, during the fifth second, the object will fall 44.1 meters (34.3 + 9.8), during the sixth second it will fall 53.9 meters, during the seventh second it will fall 63.7 meters, during the eighth second it will fall 73.5 meters, during the ninth second it will fall 83.3 meters, and during the tenth second it will fall 93.1 meters.

The total distance the object will fall in 10 seconds is:

= 4.9 + 14.7 + 24.5 + 34.3 + 44.1 + 53.9 + 63.7 + 73.5 + 83.3 + 93.1

= 495 meters

The object will fall 495 meters in 10 seconds.

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The transformation is (a) Graph opens down, it moves 2 units left and 5 units down.

From the question, we have the following parameters that can be used in our computation:

y = -|x + 2| - 5

Where the parent function is

y = |x|

When we modify the equation to y = -|x + 2| - 5, we are applying several transformations to the parent graph:

So the resulting graph (a)

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The least common multiple (LCM) of the factored polynomials x(x-2) and x(x+1) is x(x-2)(x+1).

The Least Common Multiple (LCM) of two or more polynomials is the smallest polynomial that is a multiple of all the given polynomials. To find the LCM of the factored polynomials x(x-2) and x(x+1), we need to follow these steps:

1. Identify the common factors of the polynomials. In this case, the common factor is x.
2. Multiply the common factor by the remaining factors of each polynomial. In this case, we have (x-2) and (x+1).
3. Multiply the remaining factors together to get the LCM. In this case, we have (x-2)(x+1).
4. Finally, multiply the common factor by the product of the remaining factors to get the LCM. In this case, we have x(x-2)(x+1).

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The area of the shaded segment is:= 16π - 32 cm² (exact value)

= 30.849 cm² (approximate value, rounded to three decimal places)

Area is the measurement of the surface inside a two-dimensional figure. It is expressed in square units, such as square meters or square inches.

To find the area of the shaded segment, we need to subtract the area of the triangle formed by the two radii and the chord from the area of the sector.

formula:

A = (θ/360)πr²

where A is the area of the sector, θ is the central angle in degrees, π is pi (approximately 3.14), and r is the radius of the circle.

Here, the central angle is 90 degrees and the radius is 8 cm.

area of sector is:

sector = (90/360)π(8)²

= 16π cm²

To find the area of the triangle, we need to find its base and height. The base is the chord, which is also the diameter of the circle and has a length of 16 cm (twice the radius). The height is half of the length of the chord (since the central angle is 90 degrees), which is 4 cm.

So the area of the triangle is:

A_triangle = (1/2)bh

= (1/2)(16)(4)

= 32 cm²

the area of shaded segment is:

shaded = sector - triangle

= 16π - 32

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The complete proof that ΔUWX ≅ ΔWUV is explained below.

Congruent triangles are set of given triangles which have equal values of corresponding properties. Thus the triangles have equal dimensions and measure of internal angles.

The two column complete proof required are given below:

              STATEMENT                             REASONS

1. WX ║ UV                                               Given

2. < V ≅ <X                                               Given

3. <VUW ≅ <UWX                                    Definition of alternate angles.

4. UW ≅ UW                                             Reflexive property of congruence

5. ΔUWX ≅ ΔWUV                                   Angle-Side-Angle (AAS) property

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If Colin wants to make 2 batches of Lavender soap and 2 batches of Vanilla soap, then he will need $9.57 for the oils

Here, Colin needs 1.5 ounces of Scented oil to make a batch of soap.

He wants to make 2 batches of Lavender soap and 2 batches of vanilla soap.

So, the amount of scented oil for 2 batches would be:

1.5 × 2 = 3 ounces

The cost of an ounce of Lavender oil is $1.54

So, using unitary method the cost of oil for the 2 batches of Lavender soap would be:

C₁ = 3 × 1.54

C₁ = 4.62 dollars

The cost of an ounce of Vanilla oil is $1.65

So,  using unitary method the cost of oil for the 2 batches of Vanilla soap would be:

C₁ = 3 × 1.65

C₁ = 4.95 dollars

Thus, the total cost would be,

C = C + C

C = 4.62 + 4.95

C = 9.57 dollars

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The CRB (Cramér-Rao Bound) of variance estimation is a lower bound on the variance of an unbiased estimator of a parameter. The CRB of variance estimation for this system is (02 +0)^2/(02 +0 + (02 +0)^2). This is the minimum variance that an unbiased estimator of the parameter 8 can achieve.

In this case, the parameter we are trying to estimate is 8. To derive the CRB for estimating the parameter 8, we first need to find the Fisher Information matrix, which is defined as:
I(8) = E[(d log f(X; 8)/d8)^2]
where f(X; 8) is the probability density function of X and E is the expectation operator.

Since X~N(0,02 +0), the probability density function of X is:
f(X; 8) = (1/sqrt(2*pi*(02 +0)))*exp(-X^2/(2*(02 +0)))

Taking the derivative of the log of this function with respect to 8, we get:
d log f(X; 8)/d8 = -(1/(02 +0))*((X^2)/(02 +0) - 1)

Squaring this and taking the expectation, we get:
I(8) = E[(1/(02 +0))^2*((X^2)/(02 +0) - 1)^2]

Simplifying and using the fact that E[X^2] = 02 +0, we get:
I(8) = (1/(02 +0))^2*(02 +0 + (02 +0)^2)

Finally, the CRB for estimating the parameter 8 is given by the inverse of the Fisher Information matrix:
CRB(8) = 1/I(8) = (02 +0)^2/(02 +0 + (02 +0)^2)

Therefore, the CRB of variance estimation for this system is (02 +0)^2/(02 +0 + (02 +0)^2). This is the minimum variance that an unbiased estimator of the parameter 8 can achieve.

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Answer:

D. 432

Step-by-step explanation:

To find out this question you need to find out how many cookies you have of each type. we know we have 120 chocolate chip cookies. There are 42 fewer oatmeal cookies than chocolate chip cookies so we take 120 and minus 42.

120 - 42 = 78

There are 78 oatmeal cookies. now we want to find out how many peanut butter cookies we have. There are 3 times as many peanut butter cookies than oatmeal cookies so we times 77 with 3.

78 × 3 = 234

Now we know how many cookies are in all the types, we need to find the total number of all cookies in the grocery store.

120 + 78 + 234 = 432

therefore the answer will be D. 432

Hope this helps :)

The results of the SPSS INDEPENDANT T TEST can help to determine whether the effect of sugar on activity is statistically significant.

Yes, sugar has an effect on activity. In order to determine this, you can use an SPSS INDEPENDANT T TEST. This is a statistical test used to determine whether there is a significant difference between two groups of data, in this case, the control (water) and experimental (juice) groups.

The T Test requires that the two data sets are of equal length and are both normally distributed. The data provided above meet these criteria. The results of the T Test will tell us if the difference between the two sets is statistically significant at the 5% level (α=.05).

Therefore, the results of the SPSS INDEPENDANT T TEST can help to determine whether the effect of sugar on activity is statistically significant.

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