subject
Mathematics, 02.08.2021 22:50 meeeekmill

A program was created to randomly choose customers at a clothing store to receive a discount. The program claims 22% of the receipts will get a discount in the long run. The owner of the clothing store is skeptical and believes the program's calculations are incorrect. He selects a random sample and finds that 17% received the discount. The confidence interval is 0.17 ± 0.05 with all conditions for inference met.

Part A: Using the given confidence interval, is it statistically evident that the program is not working? Explain. (3 points)

Part B: Is it statistically evident from the confidence interval that the program creates the discount with a 0.22 probability? Explain. (2 points)

Part C: Another random sample of receipts is taken. This sample is five times the size of the original. Seventeen percent of the receipts in the second sample received the discount. What is the value of margin of error based on the second sample with the same confidence level as the original interval? (2 points)

Part D: Using the margin of error from the second sample in part C, is the program working as planned? Explain. (3 points)

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 13:30
Fred has a total of 62 dvd and cd. if the number of cd is three more than two times the number of dvd, how many cd does he have?
Answers: 2
question
Mathematics, 21.06.2019 20:00
How to find the exponential function y=ca^x, with points (1,2) and (2,1)
Answers: 2
question
Mathematics, 21.06.2019 20:00
Given ab and cb are tangents of p, and m =10°. what is the measure of abp?
Answers: 1
question
Mathematics, 21.06.2019 20:00
True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1
Answers: 2
You know the right answer?
A program was created to randomly choose customers at a clothing store to receive a discount. The pr...
Questions
question
Mathematics, 22.01.2020 07:31
question
Mathematics, 22.01.2020 07:31
question
Mathematics, 22.01.2020 07:31
question
Mathematics, 22.01.2020 07:31
Questions on the website: 13722367