Assignment Instructions/ Description
Image transcription texteffectiveness of paroxetine for treating bipolar depression, subjects were measured using the Hamilton
depression scale with the summary results given below (based on data from a "Double-Blind, Placebo-
Controlled Comparison of Imipramine and Paroxetine in the Treatment of Bipolar Depression," by
Nemeroff et al., American Journal of Psychiatry, Vol. 158, No. 6). [lower scores indicate lower depression]
n
S
Treatment
18
22.5
3.77
Placebo
25
25.2
3.85
Calculate the 99% confidence interval for the population difference in mean Hamilton depression scale
scores for the treatment and placebo groups "by-hand" by coding the steps in R. Then use the custom R
function TwoMeansTInterval to check your results. Report and interpret the interval in the context
of the problem. Assume equal population variances when doing your calculations. (3 points)... Show moreeffectiveness of paroxetine for treating bipolar depression, subjects were measured using the Hamilton
depression scale with the summary results given below (based on data from a "Double-Blind, Placebo-
Controlled Comparison of Imipramine and Paroxetine in the Treatment of Bipolar Depression," by
Nemeroff et al., American Journal of Psychiatry, Vol. 158, No. 6). [lower scores indicate lower depression]
n
S
Treatment
18
22.5
3.77
Placebo
25
25.2
3.85
Calculate the 99% confidence interval for the population difference in mean Hamilton depression scale
scores for the treatment and placebo groups "by-hand" by coding the steps in R. Then use the custom R
function TwoMeansTInterval to check your results. Report and interpret the interval in the context
of the problem. Assume equal population variances when doing your calculations. (3 points)