A television executive wants to estimate the mean number of hours per day that a television set is

switched on for the entire population. He records the number of hours the TV is switched on for a

randomly selected collection of households, with the results as follows:

7.8, 8.6, 6.4, 11.4, 8, 9.5, 9.4, 11.2, 10.4, 13.7

Can the television executive conclude that the mean number of hours per day that a television is

switched on for the entire population is greater than 10? Use a 5% level of significance.