HELP WITH STATS!! In the 1940\'s, physicians noticed that there might be an asso

Question

HELP WITH STATS!!

In the 1940's, physicians noticed that there might be an association between kidney disease and diabetes. To determine if an association existed, they could use two sampling plans: Plan A: Select 500 people at random who have diabetes and 500 people at random who do not have diabetes. Compare the proportion of people with kidney disease among diabetics with the proportion of people with kidney disease among non-diabetics. Plan B: Select 1000 people at random and compare the percent of diabetics with kidney disease with the proportion of non-diabetics with kidney disease. Which of the following statements is the most correct in how the investigators should approach their goal?

Choose Plan A over Plan B.

Choose Plan B over Plan A.

Both plans are equally capable of addressing their intended goal.

Neither plan can be used to address the intended goal.

The plans can't be evaluated based on the information provided.

Choose Plan A over Plan B.

Choose Plan B over Plan A.

Both plans are equally capable of addressing their intended goal.

Neither plan can be used to address the intended goal.

The plans can't be evaluated based on the information provided.

Explanation / Answer

Choose Plan B over Plan A.

mean=NP

s = sqrt(p(1-p)N))

n- sample size
P- population propotion
N- Population size

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