Determine the minimum sample size required when you want to be 99​% confident that the sample mean is within one unit of the population mean and σ=17.9. Assume the population is normally distributed.     A 99% confidence level requires a sample size of ?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 26PFA
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Determine the minimum sample size required when you want to be
99​%
confident that the sample mean is within one unit of the population mean and
σ=17.9.
Assume the population is normally distributed.
 
 
A 99% confidence level requires a sample size of ?
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