The manufacturers of a medication were concerned about adverse reactions in patients treated with their drug. Data on adverse reactions is stored in the sample data table AdverseR.jmp. The duration of the adverse reaction is stored in the ADR DURATION variable.
(a) Patients given a placebo are noted with PBO listed in the treatment group variable, while those that received the standard drug regimen are designated with ST_DRUG. Test whether there is a significant difference in adverse reaction times between the two groups.
(b) Test whether there is a difference in adverse reaction times based on the gender of the patient.
(c) Redo the analyses in parts (a) and (b) using a nonparametric test. Do the results differ?
(d) A critic of the study claims that the weights of the patients in the placebo group are not the same as those of the treatment group. Do the data support the critic’s claim?
