MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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A marketing researcher wants to estimate the mean amount spent​ ($) on a certain retail website by members of the​ website's premium program. A random sample of
93
members of the​ website's premium program who recently made a purchase on the website yielded a mean of
​$1500
and a standard deviation of
​$300.
 
 
 
a. Construct a
95​%
confidence interval estimate for the mean spending for all shoppers who are members of the​ website's premium program.
 
_____≤μ≤______
​(Round to two decimal places as​ needed.)
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