A study was conducted on 32 males with high blood pressure to test the effective

Question

A study was conducted on 32 males with high blood pressure to test the effectiveness of a new oil diet on reducing blood pressure. The males were randomly selected from the target population. They were then randomly assigned to one of two diets for five weeks: the new oil diet and a standard oil diet. At the end of the study, the reduction in diastolic blood pressure was measured for each male. Suppose the results showed that the reduction in diastolic blood pressure was significantly less among those taking the standard oil diet.

a) Can we make population inferences? Why or why not? Justify your answer.

b) Can we make causal inferences? Why or why not? Justify your answer.

Thanks a lot

Explanation / Answer

a) we cannot make population inferences because the size of the population is very less to call it a population though the size of both the groups are same but there can be other differences in the population like work pressure which decide the blood pressure level, hence it will be not viable to make a population inference

b) a casual inference can be made because casual inference are made from the small section of the people and the inference made from this does not have much importance to rely upon hence we can have a casual inference on this.

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