14.8 According to the director of a county tourist bureau, there is a median of 10 hours of sunshine per day during the summer months. For a random sample of 20 days during the past three summers, the number of hours of sunshine has been recorded as shown below. Use the 0.05 level in evaluating the director’s claim.

8 9 8 10 9 7 7 9 7 7 9 8 11 9 10 7 8 11 8 12 hours