PLEASE USE 4 STEP HYPOTHESIS AND SHOW YOUR WORK

A researcher suspected that age is related to depression. It is known that the general population averagem=40 on a standard depression test. The researcher obtained a sample of individuals (n=9) who are more than 75 years old. The depression score of this sample had M= 43, and s=3. On the basis of this sample, is depression for elderly people significantly different from depression in the general population ata=0.05 level?

1. Did the sample support researcher's hypothesis? Show the process for your decision.