1. Consider H0: =55 versus H1: 55. a. What type of error would you make if the null hypothesis is actually false and you fail to reject it? Type 1 or Type 2 b. What type of error would you make if the null hypothesis is actually true and you reject it? Type 1 or Type 2 2. Which of the following is a two-tailed test? a. H0: =90, H1: <90 b. h0: =87, h1:>87 c. H0: =57, H1: 57 3. Which of the following is a left-tailed test? a. H0: =73, H1: >73 b. H0: =19, H1: 19 c. H0: =135, H1: <135 4. the number of restaurants in each five small towns is 3, 12, 8, 10, and 6, respectively. let y denote a town. find following sum. y2 =5. mean monthly out-of-pocket cost prescription drugs for all senior citizens city $360 with standard deviation $75. x be such costs random sample 25 from this city. sampling distribution x. 6. data give years teaching experience faculty members department at university. 5 21 11 17 member department. write population 2 p(x) 7. ages (in years) six family. 57 51 31 26 22 16 age what probability p(x =22)? round your answer to three decimal places. p (x =22) >