Question

Problem 6: Researchers are testing two new cholesterol medications. Medication is given to some males and females and a placebo is given to others. The tablesbelow summarize the resulting HDL cholesterol levels after 8 weeks.

Problem 6a: Is there evidence of effect modification with medication A? Provide a brief (1-2 sentences) explanation.

Medication A
Women	N	Mean HDL	Std Dev of HDL
New drug	40	35.47	2.45
Placebo	41	38.42	3.42
Men	N	Mean HDL	Std Dev of HDL
New drug	10	46.19	1.35
Placebo	9	39.06	2.89

Problem 6b: Is there evidence of effect modification with medication B? Provide a brief (1-2 sentences) explanation.

Medication B
Women	N	Mean HDL	Std Dev of HDL
New drug	40	46.12	2.19
Placebo	41	39.24	2.47
Men	N	Mean HDL	Std Dev of HDL
New drug	10	45.25	1.89
Placebo	9	39.06	2.22

Answer 1

for women and treatment A

for Men and treatment A

there is evidence of effect modification with medication A as both times(men and women) null hypothesis is rejected

B)

Women with treatment B

Men with treatment B

there is evidence of effect modification with medication B

Please rate