applied statistics

2) The Malaysian Statistics Department reported that a person between the ages of 18 and 34 has had an average of 9.2 jobs. To see if this average is correct, a researcher selected a random sample of 8 workers between the ages of 18 and 34 and asked how many different places they had worked. The results were as follows: 8 12 15 6 1 9 l3 2 At a=0.05, can it be concluded that mean is 9.2? Use the 11% value method. Assume that the data is approximately normally distributed. (20 marks)