Answer:
Optin b is right
Step-by-step 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
