In order to determine rates, a motel manager wishes to find the 90% confidence interval of the mean rate that competing motels charge. He wishes to be accurate within $2. If the standard deviation of the rates is $10, how large a sample must be selected to get the desired information?
In order to determine rates, a motel manager wishes to find the 90% confidence interval of the mean rate that competing motels charge. He wishes to be accurate within $2. If the standard deviation of the rates is $10, how large a sample must be selected to get the desired information?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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- In order to determine rates, a motel manager wishes to find the 90% confidence interval of the mean rate that competing motels charge. He wishes to be accurate within $2. If the standard deviation of the rates is $10, how large a sample must be selected to get the desired information?
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