A random sample of 15 people was asked to record how much TV they watched every...

A random sample of 15 people was asked to record how much TV they watched every day for a week. The total number of hours each person watched during the week is displayed below.

The data are shown below.

0.0	7.8	8.6	9.7	11.3
17.7	19.0	19.1	19.5	20.4
22.9	25.8	33.8	36.8	39.2

b. If a normal approximation is appropriate, find the probability that a randomly selected person in the population watches less than 9 of TV per week. If a normal approximation is not appropriate, type “NA” (without the quotes).

Solutions

Expert Solution

Using probability plot itvis clear that the data follow Normality.

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