Question

Andrew took a random sample of 10 decorated ceramic cups from a population of 100 cups to determine the sample mean number of defective cups.Barbara took another random sample of 10 cups from the same population to do the same thing. What would happen if Andrew and Barbara instead chose samples of size 20?

A.) The difference between their sample means would likely reduce.

B.) The difference between their sample means would likely increase.

C.) The difference between their sample means would likely stay the same.

D.) There is not sufficient data to answer this question.

Im thinking c or d @rational @amistre64

Answer 1

you might want to ask @rational

Answer 2

im inclining toward A
@amistre64

Answer 3

the greater the sample size, the lesser the standard deviation of sampling distribution.. so the difference between means should likely reduce...

Answer 4

Andrew took a random sample of 10 decorated ceramic cups from a population of 100 cups to determine the sample mean number of defective cups.

Barbara took another random sample of 10 cups from the same population to do the same thing.

What would happen if Andrew and Barbara instead chose samples of size 20?
-----------------------------

i hate wordy problems ....

A sounds best to me, otherwise D

Answer 5

depends on how you want to define 'likely' i spose