Hey there, I would love your feedback and help to the best of your statistics and probability ability. With questions 47-55.

IV The following table lists the smoking habits of a random sample of U of S students. Gender Male Female Total Non-smoker 187 322 Regular Smoker 39 60 Smoking Heavy Smoker 5 14 Total 179 217 396 47. Estimate the proportion of male U of S students that are nonsmokers. 48. Estimate the proportion of female U of S students that are nonsmokers. 49 Estimate the proportion of smokers that are heavy smokers. Choices 15 to 17 a) 0.033 b) 0.189 c) 0.359 d) 0.626 e) 0.696 f) 0.754 g) 0 862 h) 0.912 50. Estimate the proportion of male U of S students that are nonsmokers with a 95% confidence interval. Choices a) 0.691 to 0.817 b) 0.816 to 0.908 c) 0.671 to 0.837 d) 0.801 to 0.922 51. Estimate the proportion of female U of S students that are nonsmokers with a 99% confidence interval. Choices a) 0.691 to 0.817 b) 0.816 to 0.908 c) 0.671 to 0.837 d) 0.801 to 0.922 52. Estimate the difference between males and females in the proportion of nonsmokers with a 95% confidence interval Choices a) 0.030 to 0.186 b)-0.077 to 0.093 c) 0.005 to 0.210 d) 0.015 to 0.386 Suppose one is interested in testing if there is a difference between the proportion of male smokers and female smokers. 53. Determine the appropriate test statistic Choices P-P. A - P (P (1- P) 1 + 1) P - P d) z= P-P. P( - P) Page 6 UNIVERSITY OF SASKATCHEWAN Suit 245 3401) Final Examination December 2021 54. Determine the value of the test statistic Cholces ) 1.73 b) 0.08 () - 1.06 -10 0 019 () -3.25 h) 4.2 0. 49 13.8 55. If the significance level of the test is a = 0.05 determine the appropriate critical region Choices b) = 1.960 B) : 1. 960 h) 2 5-1. 960 or = 2 / 96 D 25-1 645