3. A random sample of 25 observations taken from a population that is normally distributed produced a sample mean of 58.5 and a standard deviation of 7.5. Find the critical and observed values of t for each of the following tests of hypothesis using a = 0.01. a) H:μ = 55 Ha: μ > 55 b) Ho:μ = 55 Ha: μ # 55

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
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3. A random sample of 25 observations taken from a population that is normally distributed produced a
sample mean of 58.5 and a standard deviation of 7.5. Find the critical and observed values of t for each
of the following tests of hypothesis using a = 0.01.
a) H:μ = 55
Ha: μ > 55
b) Ho:μ = 55
Ha: μ # 55
Transcribed Image Text:3. A random sample of 25 observations taken from a population that is normally distributed produced a sample mean of 58.5 and a standard deviation of 7.5. Find the critical and observed values of t for each of the following tests of hypothesis using a = 0.01. a) H:μ = 55 Ha: μ > 55 b) Ho:μ = 55 Ha: μ # 55
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