3 How do you know your answer to the previous question is co

3: How do you know your answer to the previous question is correct?

Solution

1)

as you are saying that there are proportions we need P1 , Q1 and P2 , Q2

so the only formula that have those values is letter d)

2)

as the problem said that each member of sample 1 is paired with a member of population 2 so we are know that there are the same sample size for each population

so the answer for this question is letter b)

3)

for each case there are formulas that you can find on the books