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yulyashka [42]
3 years ago
14

The manager of a hardware store claims that 90% of the shoppers are satisfied with the the selection of paint he carries. The re

sults of a survey show that 80% percent of shoppers are satisfied with the selection of paint he carries. The margin of error for this survey is 7%. Find the interval estimate to determine if his claim is reasonable.
Question 25 options:


No, his claim is not reasonable because 90% is outside the interval estimate.


Yes, his claim is reasonable because 90% is in the interval estimate.


No, his claim is not reasonable because 90% is in the interval estimate.


Yes, his claim is reasonable because 90% is outside the interval estimate.
Mathematics
1 answer:
MAXImum [283]3 years ago
4 0

Answer:

B: Yes, his claim is reasonable because 90% is in the interval estimate.

Step-by-step explanation:

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3 years ago
Solve for c.<br><br> 5c+16.5=13.5+10c
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Answer:

c = 3/5

Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
According to the manufacturer of the candy Skittles, 20% of the candy produced are red. If we take a random sample of 100 bags o
igomit [66]

Answer:

Probability that the proportion in our sample of red candies will be less than 20% is 0.5 .

Step-by-step explanation:

We are given that 20% of the candy produced are red. A random sample of 100 bags of Skittles is taken.

The distribution we can use here is;

               \frac{\hat p - p}{\sqrt{\frac{\hat p (1- \hat p)}{n} } } ~ N(0,1)

where, p = 0.20 and n = 100

Let \hat p = proportion of red candies in our sample

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Therefore, probability that the proportion in our sample of red candies will be less than 20% is 0.5 .

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3 years ago
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