In each of scenarios below identify what is wrong and explai

In each of scenarios below identify what is wrong and explain why: Advice columnist Ann Landers once asked her divorced readers whether they regretted their decision to divorce. She received approximately 23,000 responses and nearly 75% of them said they were glad they divorced. She then concluded that about three quarters of the divorced population are happy about their decision to divorce.

A researcher wants to conduct an experimental study to find any relationship between the physical fitness and leadership skills. She selects 500 middle-aged executives who have volunteered for an exercise program. On the basis of a physical examination, the executives were divided into a low fitness group and a high fitness group. All executives then take a psychological test designed to measure leadership, and the results for two groups are compared

Solution

for the first escenario is wrong because she concluded bout the poñuation of the divorced

but you only have a sample, you need to do a test to conclude

for the 2 scenario

the test need to compared for the 2 groups as a t paired test , not as a 2 separted gropus