How would you set up the alternative hypothesis to examinewhether the incidence proportion of nausea in the treatment group was different from that in the control group? Let p1 = the incidence proportion of nausea in the treatment group, and p2 = the incidence proportion of nausea in the placebo group.

Group of answer choices

a. p1 > p2

b. p1 is not equal to p2

c. p1 < p2

d. p1 = p2

How would you calculate the incidence proportion of nausea in the treatment group?

Group of answer choices

a. 267/3080 = 0.0867

b. 485/1024 = 0.473

c. 267/1789 = 0.149

d. 485/3080 = 0.157

How would you calculate the incidence proportion of nausea in the control group?

Group of answer choices

a. 485/3080 = 0.157

b. 267/1789 = 0.149

c. 485/1024 = 0.473

d. 267/3080 = 0.0867

How would you calculate the incidence proportion ratio (IPR) comparing treatment to placebo?

Group of answer choices

a. IPR = IP in Treatment - IP in Placebo (= -0.324)

b. IPR = IP in Treatment / IP in Placebo (=0.315)

How would you calculate the incidence proportion difference (IPD) comparing treatment to placebo?

Group of answer choices

a. IPD = IP in Treatment - IP in Placebo (= -0.324)

b. IPD = IP in Treatment / IP in Placebo (=0.315)