Please answer these questions and SHOW YOUR WORK. Will leave good review, thank you ?

Problem # 9 ( pts) The U.S. Bureau of Labor and Statistics 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 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: 12 12 6 5 9 13 8 Using a significance level of 0.05, can it be concluded that the mean is 9.2? 11 Problem # 10 ( ) You work for a company that exhibits at trade shows. Using figures from the last 30 trade shows, an employee claims that 52% of the attendees at trade shows are more likely to visit an exhibit when there is a giveaway. You select a sample of 1165 participants in a trade show and 746 agreed with this view. At a = 0.05, do you have enough evidence to reject the claim