Question

A researcher has developed a new over the counter drug to treat mild muscle pain and wants to see how it compares to ibuprofen. She randomly assigns participants to either take the new drug or ibuprofen and measures their pain.

What is the null hypothesis for this study?

Answer 1

Ans:

Pain level can be measured on a numerical scale e.g 1 to 10.Then we will measure pain levels for both group who take new drug and who take ibuprofen.So,null hypothesis is that there is no difference in mean pain levels of two groups.