Watching TV: The general Social Survey asked a large number of people how much time they spent watching TV each day. The mean number of hours was 3.09 with a standard deviation of 2.85 . Assume that in a sample of 33 teenagers, the sample standard deviation of daily TV time is 4.1 hours, and that the population of TV watching times is normally distributed. Can you conclude that the population standard deviation of TV watching times for teenagers differs from 2.85? Use the level of significance a=.05.

Find the critical values. Round the answer to three decimal places. ____ and _____

1. State the null and alternate hypotheses.
2. Choose a significance level and find the critical value.
3. Compute the test statistic.
4. Determine whether to reject H0
5. State a conclusion.