Question

Researchers conducting a clinical trial randomly assigned 60 patients with painful knee osteoarthritis evenly into one of three treatment groups: glucosamine, chondroitin, or placebo.After the study period, patients were asked if they experienced substantial improvement in pain and ability to function normally.Thirty-four patients replied that they did have an improvement, including 13 in the glucosamine group, 16 in the chondroitin group, and 5 in the placebo group.

What statistical test would be appropriate to determine if the three treatments had different rates of improving knee pain and functionality? Be specific.

Answer 1

Type of statistical test would be appropriate to determine if the three treatments had different rates of improving knee pain and functionality : One Way ANOVA for hypothesis testing of significance of difference in means of the three treatments

Explanation:

Treatment 1: glucosamine group

Treatment 2: chondroitin group

Treatment 3: placebo group

One way ANOVA is used to to determine if the three treatments had different rates of improving knee pain and functionality