Question

Suppose that the mean of the sampling distribution for the difference in two sample means is 0.

This tells us that:

A. the two sample means are both 0.
B. the two sample means are equal to each other.
C. the two population means are both 0.
D. the two population means are equal to each oth

Answer 1

Optin b is right

Explanation:

given that the mean of the sampling distribution for the difference in two sample means is 0.

This means that when two sample means are equal we get difference is 0 and this would be the point estimate of mean for differene of means distribution.

Hence the four options given can be analysed

. the two sample means are both 0. -- False need not be 0 but equal

B. the two sample means are equal to each other. -- True

C. the two population means are both 0. -- False need not be 0

D. the two population means are equal to each oth -- False only sample means are 0 and if sample represents population this may be 0