An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within 1 year. The ages are not normally distributed so the director knows she will need a sample of at least 30. Determine the minimum required sample size to construct a 99% confidence interval for the population mean. Assume the population standard deviation is 4.8 years (a= 4.8). On = 48 On = 62 On = 114 On = 153
An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within 1 year. The ages are not normally distributed so the director knows she will need a sample of at least 30. Determine the minimum required sample size to construct a 99% confidence interval for the population mean. Assume the population standard deviation is 4.8 years (a= 4.8). On = 48 On = 62 On = 114 On = 153
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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