Hey guys, I really need help with this question!Please no links, or I will report! Dont answer if you dont know please!
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Martha Stewart has developed a new perfume. She decides to test its side effects by spraying the perfume in 31 randomly chosen houses. She records the level of antigens that create an allergic response. If the antigen level is high enough, the person will go into anaphylactic shock. The mean of her sample is a lot bigger than the median, but Martha hopes that a 90% confidence interval will contain zero. Her confidence interval is (0.116, 1.884). Disappointed, she offers you $144 to find an acceptable, realistic way to change the confidence interval to contain zero. What could you say to earn the money
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The acceptable and realistic ways to to change the confidence interval to contain zero are;
Martha should decrease x-bar by providing medicine to treat shock to the perfume users.Decrease sample size than 30Increase the confidence level, till the interval contains zeroReasons:
The confidence interval is given by the following formula;
[tex]CI=\bar{x}\pm t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex]
When the mean, [tex]\overline x[/tex], is positive and large, both values, [tex]\bar{x}+ t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and [tex]\bar{x} -t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], will be positive.
Therefore, Martha has to either intervene to reduce the mean also known as x-bar
Increasing the confidence level will increase the allowable error such that [tex]\bar{x} < t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}}[/tex], and the interval will contain zero
Therefore;
Martha should decrease x-bar, [tex]\overline x[/tex], by providing medicine to treat shock to the perfume usersUse a much smaller sample size, n, such that [tex]t_{\alpha/2} \cdot \dfrac{s}{\sqrt{n}} > \bar{x}[/tex]Increase the confidence level to 95% or 99%, thereby increasing the error boundLearn more here:
https://brainly.com/question/13034570
The Four-Digits Problem
Use the digits 1, 2, 3, and 4 to write expressions for the numbers
1 through 50. Each digit is used exactly once in each expression.
(There might be more than one expression for a given number.)
You can use addition, subtraction, multiplication and division, factorial, absolute
, exponents, and parentheses in any way you wish.
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Answer:
praktik ko yctgv hujan hu bule
Write the equation of the line perpendicular to 2x+3y=7 that passes through the point (-4, 6). Write your answer in slope-intercept form.
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Answer:
Ig This Would Be The Answer
Step-by-step explanation:
Reorder 73 7 3 and 2x3 2 x 3 . Rewrite in slope-intercept form. Using the slope-intercept form, the slope is 23 .
3y = 7 - 2x
y = (-2/3) + (7/3)
For the new line to be perpendicular, it needs to be the negative inverse (flip it, and change the sign). So the slope of our new line would be 3/2
Next, plug in our point into
y = (3/2)x + b
6 = (-6) + b
12 = b
So, the answer would be
y = (3/2)x + 12
What is 9/14 minus 6/14 ?
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Answer:
I think that the answer is 3/14
Step-by-step explanation:
9/14 - 6/14 = 3/14
Answer:
here
9/14 - 6/14
=(9-6)/14
=3/14
A camp counsellor is fencing off a rectangular play area for the younger campers.
a) if she has 16m if fencing, how should she arrange the fencing to provide the greatest possible area?
b) How should she alter her diagram if she can use the dining hall as one of her boundaries?
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Answer:
Step-by-step explanation:
a) if she had 16 m of fencing
all possible outcomes
4 by 4
2 by 6
1 by 7
the greatest should be 4 by4
b) she could alter it to 2 by 6
in 2-3 sentences, elaborate on the concept of man being a rational being.
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Answer:
Pls mark brainliest
Step-by-step explanation:
A man is seen to be a rational being because he is very sensible and is capable of making decisons and judgement due to the fact that he thinks intelligiently and also in philosophy a man is viewed to be a curious being because he is very rational and is capable of thinking about the existence and nature.
George bought 9 apples that cost 50 cents each. He paid with a five dollar bill. How much change did George receive?
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Step-by-step explanation:
pls follow me this is my new.id
Answer:
He has 9 apples so we add .50 cents 9 times.
If we count this money-wise we would get 4.50, so if he paid with a $5 bill he would recieve 50 cents
Step-by-step explanation:
Suppose you want to work out by combining periods of jogging at 5
mph and walking at 3 mph. You intend to go a total distance of at least 3
miles in at most 45 minutes, and you want the distance jogged to be at
most four times the distance walked.
Determine the distances walked and jogged, to the nearest tenth of a
mile, that would result in
the greatest number of miles jogged.
• the greatest number of miles walked.
Explain in detail how you determined your answers. Include a graph in
your explanation
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Answer:
5+3+3+45=?
Step-by-step explanation:
#CarryOnLearningJean is planning to take a foreign language class. To research how satisfied other students are with their foreign language classes, she decides to take a sample of 50 such students. The university offers classes in five languages: Spanish, German, Russian, French, and Japanese. She will select a random sample of 10 students from each language class. Which term best describes the sampling technique Jean is using
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Answer:
probability I think if I am ✅ can I get brainliyist
What is the value of m?
42.78/m=93
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Answer:
m=0.46
Step-by-step explanation:
Answer:
m=42.78÷93
m=0.46
Step-by-step explanation:
please mark me as brainlest
3∣a−b∣ if a=−9 and b=3
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Answer:
36 because the absolute value of -9-3 is 12, and then 12 times 3 is 36
Solve using elimination.
–8x + 6y = –4
2x + 2y = –20
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x = -4 and y = -6
Step-by-step explanation:
Solve for x :–8x + 6y = –4
2x + 2y = –20 (times 3)
Elimination
–8x + 6y = –4
6x + 6y = –60
_____________ _
-14x = 56
x = -4
Solve for y :–8x + 6y = –4
2x + 2y = –20 (times 4)
Elimination
–8x + 6y = –4
8x + 8y = –80
_____________ +
14y = -84
y = -6
Write the equation of the line graphed below.
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Answer: y=-7
Step-by-step explanation: on why axis and is pallet yo x axis
Answer:
y = -7
Step-by-step explanation:
find the product of (8x-3) and (2x-5) in simplest form
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Answer:
(8x-3) (2x-5)
= 16x²-46x+15
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
lan walked 5 blocks home from school.His friend Kim walked x blocks farther.Write an expression for how far Kim
walked
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Four students are training for their cross country team at school. They were told to run for as long as they could without stopping. The coach measured their total distances and their overall time. Calculate the average speed for each student and find the two students who tied for the same average speed.
A) Brev and Chris
B) Brev and leslie
C) Chris and Dylan
D) Dylan and Leslie
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Answer:
C) Chris and Dylan
Step-by-step explanation:
Please help me answer
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Answer:
Step-by-step explanation:
A
What is the slope of the line shown in the graph? Express your answer as an improper fraction or as an integer
Answers
Answer:
y= 3/2x + 1
Step-by-step explanation:
Rise over run to find slope: Rise: 3 Run:2
Y-intercept is at +1
Step-by-step explanation:
slope is the same as gradient,m
m= y2- y1
x2 - x1
(2,4) (0,1)
x2,y2 x1,y1
m= 4 - 1
2 - 0
m= 3
2
A high school athlete ran the 100 meter sprint in 13.245 seconds. Round the time to the nearest tenth. Enter the answer in the box.
seconds=
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Answer:
13.245 rounded to the nearest tenth is 13.2 seconds
Step-by-step explanation:
Ro round a number to the nearest 10, look at the units digit. If the units digit is 5 or more, round up. If the units digit is 4 or less, round down.
Answer:
13.250
Step-by-step explanation:
befause number five is near ten
what is the ratio of hearts to suns write your answer in simplest form for example 8:6 is equivalent to to 4:3
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Step-by-step explanation:
this is the answer
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What is the Gcf of 225 and 415
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Answer:
5
Step-by-step explanation:
To get the Greates Common Factor (GCF) of 225 and 415 we need to factor each value first and then we choose all the copies of factors and multiply them:
225: 3 3 5 5
415: 5 83
GCF: 5
The Greates Common Factor (GCF) is: 5
Answer:
5
Step-by-step explanation:
The factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225
The factors of 415 are: 1, 5, 83, 415
Then the greatest common factor is 5.
I need help with this problem, please do not try to guess or anything like that.
Answers
Answer:
h(x) = 9.5x-110
Step-by-step explanation:
h(x) = 9.5x-110, you had the right idea, just got to remember that when a negative number goes down its addition.
-If you thought that I was helpful, go ahead and give me the brainliest answer!
What 2 numbers have a total of 46 and a diffrence of 12
Answers
Answer:
29 and 17
Step-by-step explanation:
Sum: 29 + 17 = 46
Difference: 29 - 17 = 12
Answer:
The answer is 17 and 29.
17+29=46.
29-17=12
Can someone please help me with a Mid topic assessment please?
Answers
Answer:
we can do it again and I am a great time with you and your family and friends and family is not good
Use this table to help answer the question. What would be the best description of the johns times rounded to quarter hours (15 minutes)
A) 8:45am - 5:00pm
B) 8:45am - 5:15pm
C) 8:30am - 5:15pm
D) 8:30am - 5:00pm
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Hope this helps!
Leah's softball team has $437 to spend on equipment. They want to buy 5 gloves that cost $84 each. Leah needs to know if they have enough money to buy the gloves. What is the hidden question she has to answer first? Texas connection academy
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Answer:
yes she will have enough, they will have 17 dollars left
Step-by-step explanation:
84 times 5 is 420 so she will have enough
Solve the inequality: x+10>2x/5. *
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Hello BATAPAAKO!
[tex] \huge \boxed{\mathbb{QUESTION} \downarrow}[/tex]
Solve the inequality: x+10>2x/5.
[tex] \large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}[/tex]
[tex]x + 10 \gt \frac { 2 x } { 5 } \\ [/tex]
Firstly, multiply both sides of the equation by 5.
[tex]5(x + 10) > 2x \\ = 5x + 50 > 2x[/tex]
Since 5 is greater than 0, the direction of the inequality will remain unchanged. Now, subtract 2x from both the sides.
[tex]5x + 50 > 20 \\ = 5x + 50 - 2x > 0[/tex]
Combine 5x & -2x to get 3x.
[tex]5x + 50 - 2x > 0 \\ = 5x - 2x + 50 > 0 \\ = 3x + 50 > 0[/tex]
Now, subtract 50 from both the sides. Remember :- anything subtracted by 0 will result in its negation. So 50 subtracted from 0 will give you -50.
[tex]3x + 50 > 0 \\ = 3x > - 50[/tex]
Divide both sides of the equation by 3. Again, since 3 is > 0, the direction of inequality will remain unchanged.
[tex]3x > - 50 \\ = \large\boxed{\boxed{ \bf \: x > - \frac{ 50}{3} }}[/tex]
__________________
Hope it'll help you!
ℓucαzz ッ
Evaluate the expression.
2
-3(–15 – 2 (-9))
-
What is the value of the expression?
Enter your answer in the box.
Answers
Answer:
9
Step-by-step explanation:
-3(-15-2(-9))^2
=-3(-15+15)^2
=-3^2
=9
sorry, it just seems easy for me.
but tell me if you need more profound explanations. <:D
the pic is for a other question:
please mark this answer as brainlist
 what is the geometric sequence and the 8th term and the 10th term
Answers
Answer:
The geometric sequence is decreasing by 0.5 * each term
common ratio = 0.5
an equation for this exact sequence would be
50(0.5)^x-1
Step-by-step explanation:
To find the common ratio for a geometric sequence we can divide the previous term value by the next term value
so 50 / 25 = 0.5
and to check we can divide
25 / 12.5 = 0.5
So our common ratio is 0.5
Step-by-step explanation:
Given sequence:
50, 25, 12.5, ...The first term is 50 and the common ratio is:
r = 12.5/25 = 25/50 = 1/2The equation:
tₙ = t₁rⁿ⁻¹tₙ = 50(1/2)ⁿ⁻¹Find the 8th and 10th terms:
t₈ = 50(1/2)⁷ = 0.390625t₁₀ = 50(1/2)⁹ = 0.09765625The width of the rectangle is 0.4 meters less than the length. The perimeter of a rectangle is 53.2 meters. Find the dimensions of the rectangle (in meters). length m width m
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Answer:...
Step-by-step explanation:...................