A marketing specialist wants to estimate the average amount spent by visitors to an online retailer's newly-designed website. From the data in a preliminary study, she guesses that the standard deviation of the amount spent is about 14 dollars. How large a sample should she take to estimate the mean amount spent to within 5 dollars with 95% confidence?
A marketing specialist wants to estimate the average amount spent by visitors to an online retailer's newly-designed website. From the data in a preliminary study, she guesses that the standard deviation of the amount spent is about 14 dollars. How large a sample should she take to estimate the mean amount spent to within 5 dollars with 95% confidence?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 22SGR
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A marketing specialist wants to estimate the average amount spent by visitors to an online retailer's newly-designed website. From the data in a preliminary study, she guesses that the standard deviation of the amount spent is about 14 dollars.
How large a sample should she take to estimate the mean amount spent to within 5 dollars with 95% confidence?
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