A store randomly samples 603 shoppers over the course of a year and finds that 142 of them made their visit because of a coupon they'd received in the mail. Construct a 95% confidence interval for the fraction of all shoppers during the year whose visit was because of a coupon they'd received in the mail. a) Estimate the true proportion of shoppers during the year whose visit was because of a coupon they'd received in the mail. b) Interpret the confidence interval in context. The store management can be 95% confident that the population proportion of customers visiting the store because they received a coupon is within our confidence interval The store management can be 95% confident that any sample of shoppers would have a proportion of visitors whose visit is because of receiving a coupon be within this confidence interval 95% of customers visiting the store because of receiving a coupon is within our confidence interval
A store randomly samples 603 shoppers over the course of a year and finds that 142 of them made their visit because of a coupon they'd received in the mail. Construct a 95% confidence interval for the fraction of all shoppers during the year whose visit was because of a coupon they'd received in the mail. a) Estimate the true proportion of shoppers during the year whose visit was because of a coupon they'd received in the mail. b) Interpret the confidence interval in context. The store management can be 95% confident that the population proportion of customers visiting the store because they received a coupon is within our confidence interval The store management can be 95% confident that any sample of shoppers would have a proportion of visitors whose visit is because of receiving a coupon be within this confidence interval 95% of customers visiting the store because of receiving a coupon is within our confidence interval
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A store randomly samples 603 shoppers over the course of a year and finds that 142 of them made their visit because of a coupon they'd received in the mail. Construct a 95% confidence interval for the fraction of all shoppers during the year whose visit was because of a coupon they'd received in the mail.
a) Estimate the true proportion of shoppers during the year whose visit was because of a coupon they'd received in the mail.
b) Interpret the confidence interval in context.
- The store management can be 95% confident that the population proportion of customers visiting the store because they received a coupon is within our confidence interval
- The store management can be 95% confident that any sample of shoppers would have a proportion of visitors whose visit is because of receiving a coupon be within this confidence interval
- 95% of customers visiting the store because of receiving a coupon is within our confidence interval
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