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In the study of depressive symptoms among college students, the sample of 182 students was made...

In the study of depressive symptoms among college students, the sample of 182 students was made up of 83 women and 99 men. 40 of the women and 39 of the men had ever experienced depressive symptoms.

Experienced Depressive Symptoms

Yes

No

Total

Females

43

40

83

Males

60

39

99

Total

103

79

182

c) (5 pts) Calculate the risk difference comparing the risk of ever having had depressive symptoms for women compared to men and interpret this quantity.

d) (8 pts) Construct a 95% confidence interval for the risk difference you calculated in (c).

e) (5 pts) Calculate the relative risk for ever having had depressive symptoms for women compared to men and interpret this quantity.

f) (8 pts) Construct a 95% confidence interval for the relative risk you calculated in (e).

g) (5 pts) Calculate the odds ratio for ever having had depressive symptoms for women compared to men and interpret this quantity.

h) (8 pts) Construct a 95% confidence interval for the odds ratio you calculated in (g).

i) (6 BONUS pts) What value of the odds ratio from part (g) would correspond to no association between depressive symptoms and sex? Is this value contained in the 95% confidence interval you calculated in part (h)? How does this value being/not being in the CI relate to the result of the chi-square test you did in part (b)?

math   Statistics-And-Probability   
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