A sociologist develops a test designed to measure a person's attitudes about disabled people,and 16 randomly selected subjects are given the test.Their mean score is 71.2 with a standard deviation of 10.5.Construct the 99% confidence interval for the mean score of all subjects.
A)[40.26 102.14]
B)[63.46 78.94]
C)[60.66 81.74]
D)[64.44 77.96]
E)[63.21 79.19]

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The Answer of A sociologist develops a test designed to measure a person's attitudes about disabled people,and 16 randomly selected subjects are given the test.Their mean score is 71.2 with a standard deviation of 10.5.Construct the 99% confidence interval for the mean score of all subjects.
A)[40.26 102.14]
B)[63.46 78.94]
C)[60.66 81.74]
D)[64.44 77.96]
E)[63.21 79.19]

A Sociologist Develops a Test Designed to Measure a Person's