In each of scenarios below identify what is wrong and explain why: Advice column

Question

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

Explanation / Answer

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

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