Use the given information to find the minimum sample size required to estimate an unknown population mean μ.   How many adults must be randomly selected to estimate the mean FICO​ (credit rating) score of working adults in a​ country? We want 90​%confidence that the sample mean is within 4 points of the population​ mean, and the population standard deviation is 62.       What is the minimum sample size required ​(Round up to the nearest whole​ number.)

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Use the given information to find the minimum sample size required to estimate an unknown population mean
μ.
 
How many adults must be randomly selected to estimate the mean FICO​ (credit rating) score of working adults in a​ country? We want 90​%confidence that the sample mean is within 4 points of the population​ mean, and the population standard deviation is 62.
 
 
 
What is the minimum sample size required
​(Round up to the nearest whole​ number.)
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