Suppose that 50% of the subscribers of a cable television company watch the shopping channel at least once a week. The cable company is trying to decide whether to replace this channel with a new local station. A survey of 100 subscribers will be undertaken. The cable company has decided to keep the shopping channel if the sample proportion is greater than 0.585. What is the approximate probability that the cable company will keep the shopping channel, even though the true proportion who watch it is only .50? (Round the answer to four decimal places.)

Answers

Answer 1

Answer:

The probability  is  [tex]P( p  >  0.585) =  0.044565  [/tex]

Step-by-step explanation:

From the question we are told that

   The population proportion is p =  0.50

   The sample size is n = 100

Gnerally the mean of the sampling distribution is  

          [tex]\mu_x =  0.50[/tex]

Generally the standard deviation of the sampling distribution is  

              [tex]\sigma  =  \sqrt{\frac{p(1- p)}{n} }[/tex]

=>            [tex]\sigma  =  \sqrt{\frac{0.5 (1- 0.5)}{100} }[/tex]

=>            [tex]\sigma  =0.05[/tex]

Generally the approximate probability that the cable company will keep the shopping channel

[tex]P( p  >  0.585) =  P(\frac{p- \mu_{x}}{\sigma }  > \frac{0.585 - 0.50}{0.05} )[/tex]

Generally  [tex]\frac{p- \mu_{x}}{\sigma } = Z (The  \  standardized \  value  \  of  p )[/tex]

=>  [tex]P( p  >  0.585) =  P(Z > 1.7 )[/tex]

From the z-table the probability of  (Z > 1.7 ) is  

       [tex]P(Z > 1.7 ) = 0.044565[/tex]

So [tex]P( p  >  0.585) =  0.044565  [/tex]

     


Related Questions

I need help with this can someone give me an answer, please

Answers

The slope is 2.
There are multiple ways:
Create “triangles” on the graph going up 2 and over 1.

This one is probably the best ~
Pick a point and divide y/x and you should get two.

The graph of y = ax^2+ C contains the point (2, 14). Which point lies on the graph of y = a(x - 2)² + c?

Answers

Given:

The graph of [tex]y = ax^2+c[/tex] contains the point (2, 14).

To find:

The point which lies on the graph of [tex]y = a(x-2)^2+c[/tex].

Solution:

Consider the given equations are

[tex]y_1 = ax^2+c[/tex]     ...(i)

[tex]y_2 = a(x-2)^2+c[/tex]      ...(ii)

The translation is defined as

[tex]g(x)=f(x+a)[/tex]

where, a is horizontal shift.

If a>0, then the graph shifts a units left and if a<0, then the graph shifts a units right.

From equation (i) and (ii), it is clear that a=-2. So, graph of [tex]y = ax^2+c[/tex] shifts 2 units right to get the graph of [tex]y = a(x-2)^2+c[/tex].

It means each point on [tex]y = ax^2+c[/tex] shifts 2 units right.

[tex](x,y)\to (x+2,y)[/tex]

(2, 14) lies on [tex]y = ax^2+c[/tex].

[tex](2,14)\to (2+2,14)[/tex]

[tex](2,14)\to (4,14)[/tex]

Therefore, (4,14)  must be lies on [tex]y = a(x-2)^2+c[/tex].

help me... the angle pairs.. for example linear pair, vertical angles... that stuff.... I said that because last time I asked this I was getting answers not the angl pairs​

Answers

Answers:

Angle 1 and 3:  Vertical Angles

Angle 4 and 8: Corresponding Angles

Angles 4 and 6: Alternate Interior Angles

Angles 3 and 5: Alternate Interior Angles

Angles 7 and 8: Linear Pair

Angles 1 and 7: Alternate Exterior Angles

=================================================

Explanation:

Vertical angles are formed when you cross two lines to form an X shape. The vertical angles are opposite one another in this configuration.

Corresponding angles are ones that show up in the same corner of each four-corner crossing. In the case of angles 4 and 8, both are in the southwest corner of each four-corner crossing.

Alternate interior angles are angles in between parallel lines and on opposite sides of a transversal. Alternate exterior angles are similar, but they are outside the parallel lines.

A linear pair of angles are adjacent and supplementary (meaning they add to 180).

please help me someone.. ​

Answers

Answer:

A. 60√3 ft²

Step-by-step explanation:

how much is 10 lb of sugar cost

Answers

Answer:

3.75

Step-by-step explanation:

Find the slope of the line that connects the points (0,4) and (-4,1).

Answers

Answer:

3/4

Step-by-step explanation:

We can use the formula [ y2-y1/x2-x1 ] to solve.

1-4/-4-0

-3/-4

3/4

Best of Luck!

Help pls! Type in your response as a whole number with no extra symbols , variables, or spac

Answers

Answer:

63

Step-by-step explanation:

Because the two labelled angles make up a line, we know their sum is 180.

So, add them and set them equal to 180:

2x + (x - 9) = 180

Combine like terms:

3x - 9 = 180

3x = 189

x = 63

Thus, the answer is 63.

~ an aesthetics lover

find the sum of -3x^2-x-10 and 10x^2+x-10

Answers

Answer:

7x^2-20

Step-by-step explanation:

Answer:

1. -2

2.-10

Step-by-step explanation:

Please helppp!!!!!!


Given: AE = BD; CD = CE

Prove: AC = BC



ik it’s wrong

Answers

1) AE = BD; CD = CE

Given

2) AE = AC + CE

Subtraction Property of Equality

3) AC +CD= BC + CD

Segment Addition Postulate

4) AC +CD= BD

Symmetric Property of Equality

5) BD = AC + CD

Segment Addition Postulate

6) BD =BC+CD

Transitive Property of Equality

7) AC = BC

Substitution Property of Equality

I think this is it

To prove that AC and BC are congruent, all usable postulates and theorems must be stated, with valid reasons.

The proof that [tex]AC \cong BC[/tex] is as follows:

Given:

[tex]AE = BD, CD= CE[/tex]

I've added as an attachment, the table that needs to be completed.

[tex]1.\ AE = BD, CD= CE \to[/tex] Given

Because the given parameters are:  

[tex]AE = BD, CD= CE[/tex]

[tex]2.\ AC \cong BC \to[/tex] Definition of congruence

[tex]3.\ AE =AC + CE \to[/tex] Segment addition postulate

From the attached image, AE is a straight line, and point C is on segment AE.

[tex]4.\ BD=AC +CD \to[/tex] Substitution property of equality

Substitute BD for AE and CD for CE in (2)

[tex]5.\ AC +CD =BD \to[/tex] Symmetric property of equality

The symmetric property of equality states that:

if [tex]a = b[/tex], then [tex]b = a[/tex]

[tex]6.\ BD =BC +CD \to[/tex] Segment addition postulate

From the attached image, BD is a straight line, and point C is on segment BD.

[tex]7.\ AC+CD =BC+CD \to[/tex] Transitive property of equality

The transitive property of equality states that:

if [tex]a = b[/tex] and [tex]b = c[/tex], then [tex]a=c[/tex]

[tex]8.\ AC =BC \to[/tex] Subtraction property of equality

Subtract CD from both sides of (6)

[tex]9.\ AC \cong BC \to[/tex] Proved

Read more about proofs and reasons at:

https://brainly.com/question/11876259

The model represents an equation.

Answers

Answer:

2.25

Step-by-step explanation:

-3x+10=5x-8

    +8       +8

-3x+18=5x

+3x     +3x

      18=8x

      _    _

      8    8

   2.25=x

A carpenter installed 60 sheets of drywall in 10 minutes. What is the rate per minute?

Answers

Answer:

6 sheets a minute

Step-by-step explanation:

60 sheets in 10 minutes can be converted to the equation 60/10.

60/10 is equal to 6/1 which can be simplified to 6. So, the answer is 6 sheets per minute.

hope this helps!

What is the equation of line l

Answers

Answer:

Step-by-step explanation:

B

The function f(x) = x^3 +2x^1/3 is a polynomial
true or false​

Answers

Answer:

not a polynomial

Step-by-step explanation:

A polynomial is a combination of terms separated by + or − signs. A polynomial does not contain variables raised to negative or fractional exponents, variables in the denominator or under a radical, or any special features such as trigonometric functions, or logarithms

Answer:

False is a Non-polynomial

The quotient of a number and ten

Answers

the answer would be q/10

Please help I’ll
Give you brainiest!❤️

Answers

Answer:

A is incorrect

Step-by-step explanation:

Point x is negative, so you need to subtract the negative. In A, they are subtracting 5, not negative 5.

that answer (A) ^^^^^^^^^^^

Whats the estimated answer for 3,178 + 1,452 ?

Thank you!

Answers

3,178+1,452≈4,600
hope this helped

Answer:

4,360

Step-by-step explanation:

      3,178

   +

      1,452        

   =

     4,360



Coordinates ? :) thank you

Answers

Draw from (3, -1.5) to (-2, 6)

person above me is very correct

Does changing the compound inequality x > −3 and x < 3 from “and” to “or” change the solution set? Explain.

Answers

Answer:

Sure yes.

1) x > - 3 or x < 3 means that the solution set is all the numbers greater than - 3 and all the numbers smaller than 3. That is, this union of intervals: (-3,∞) U (-∞,3),  which is all the real numbers.

2) x > -3 and x <3 means that the solution set is the numbers that are at the same time greater than -3 and smaller than 3. That is the intersection of the intervals: (-3,∞) ∩ (-∞,3), which is the interval (-3, 3).

Step-by-step explanation:

looked it up and got it right on edg 2020

Answer:

Sample Response: Yes, if you change the type of compound inequality, the solution set will change. The solution set of the “and” compound inequality contains values for x that satisfy both inequalities, which are values between –3 and 3. The solution set of the “or” compound inequality contains values for x that satisfy either or both inequalities, which includes all real numbers.

Step-by-step explanation:

1/2 X + 5 = 18
Solve the equation for x

Answers

answer:

x=26

26/2= 13+5=18
1/2x + 5 = 18
1/2x =13
x=6.5

Determine the distance between (2,1) and (12,13)

Answers

Answer:

[tex]d = 15.620499[/tex]

Step-by-step explanation:

To solve this question, we must use the following distance equation:

[tex]\sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2} }[/tex]

Plug your coordinates into the equation. Remember, a coordinate is denoted as (x, y).

[tex]\sqrt{(12-2)^{2} + (13-1)^{2}}[/tex]

[tex]\sqrt{(10)^{2} + (12)^{2}}[/tex]

[tex]\sqrt{100+144}[/tex]

[tex]\sqrt{244} = 15.620499[/tex]

Please help ASAP please please

Answers

Answer:

C

Step-by-step explanation:

0.38 = 19/50

Hope this helps!

Answer:

19/50

Step-by-step explanation:

19×100=1,900

1,900÷50=38%

Jonathan knit some scarves to sell at a local arts-and-crafts show. The function r(x)=13x models the amount of money,in dollars, he brings in by selling x scarves. The function c(x)=6x models the cost,in dollars, for Jonathan to produce x scarves. It also costs Jonathan $58 to get a booth at the show. Which of the following functions p(x) models his profit for selling x scarves?

Answers

Answer:

Step-by-step explanation:

Did u get an answer???

Answer: The answer is A.  

Step-by-step explanation:

since $12 is the amount of money he gets from selling scarves you have to subtract $2 from that because that's the amount of money he losses to make the scarves. then you have to subtract $45 because he had to pay for the booth so the answer is P(x) = 10x - 45

What is the volume of this cube?
4 cubic feet
») 3 cubic feet
1 ft
6 cubic feet
1 ft
1 ft
>) 1 cubic foot

Answers

Answer:

it's 6 cubic feet look you must count all the sides together also I took the test this cube has 6 sides so your answer will be 6 cubic feet ;)

Step-by-step explanation:

help me please!!!!!!!!!!!!!!!!!​

Answers

not rlly surw if you are supposed to be putting dots there but if you are, I would put one a little bit before the first line for the 82.4 and one in the middle of the 600 and the line in the middle

find the difference quotient of f(x)=2x/x+3

Answers

Answer:

Answer:

f=

5

x

Step-by-step explanation:

Let's solve for f.

fx=

2x

x

+3

Step 1: Divide both sides by x.

fx

x

=

5

x

f=

5

x

Jamie is saving $50 per month from his pay check to buy a new video game system. The system costs $325, the controller costs $53, the power adapter costs $33 and the total cost of two games is $71. Use front-end estimation to estimate the cost of all the items. Then, choose the best estimate of the number of months it will take Jamie to save enough money to pay for all of the items.

Answers

Answer:

Using front estimation, the cost of all the items is $450 and it will take 9 months to save enough

Step-by-step explanation:

Here, firstly we want to use front-end estimation to estimate the cost of all the items.

So we want to use front end estimation to add;

325 + 53 + 33 + 71

Thus; 325 becomes 300, 53 becomes 50, 33 becomes 30

while 71 becomes 70

So the estimated total will be;

300 + 50 + 30 + 70 = 450

Now , since he saves $50 per month, the number of months it will take = 450/50 = 9 months

A ceramic sugar bowl weighs 340 grams when empty. It is then filled with sugar. One tablespoon of sugar weighs 12.5 grams. Write an equation to represent the relationship between the total weight of the bowl in grams, and the tablespoons of sugar,

Answers

Answer:Total Weight of Bowl W = 340 + (12.5T) grams

Step-by-step explanation:

pls help!
Solve the following literal equation for y.
2x - 3y = 9

Answers

Answer:

y= -3+2x/3 ...i think

Step-by-step explanation:

Answer:

sorry don't know the answers and please follow me

H.e.l.p M.e. P.l.e.a.s.e.

Answers

7.810 Rounded to the nearest thousandth

What is the measure of angle TSU?​

Answers

Answer:

80

Step-by-step explanation:

Angle VSU = 100. Angles TSU is a linear pair with angle VSU so adding them together equals 180. 180-100=80.

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