A camp director is interested in the mean number of letters each child sends during his or her camp session. The population standard deviation is known to be 2.5. Then the minimum sample size needed if we wish to be 93 % confident that our estimate of mean is off by less than 1.2 is: None of the other options 15 21 O 11
A camp director is interested in the mean number of letters each child sends during his or her camp session. The population standard deviation is known to be 2.5. Then the minimum sample size needed if we wish to be 93 % confident that our estimate of mean is off by less than 1.2 is: None of the other options 15 21 O 11
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 11PPS
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