Question: Find the sample mean and the sample standard deviation and calculate the z-scores for the largest and smallest observations. Are there any unusually large or

Find the sample mean and the sample standard deviation and calculate the z-scores for the largest and smallest observations. Are there any unusually large or small observations?

16. TV Viewers A sample of 25 households in a particular area gave the following estimates of the number of television viewing hours in prime time per household per week:

3.0 6.0 7.5 15.0 12.0 6.5 8.0 4.0 5.5 6.0 5.0 12.0

3.0 6.0 7.5 15.0 12.0 6.5 8.0 4.0 5.5 6.0 5.0 12.0 1.0 3.5 3.0 7.5 5.0 10.0 8.0 3.5 9.0 2.0 6.5 1.0 5.0

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