Answer:
C. populations are non normal and the sample sizes are large.
Step-by-step explanation:
To test hypotheses about the difference between two populations means we deal with the following three cases.
1) both the populations are normal with known standard deviations.
2)both the populations are normal with unknown standard deviations.
3) both the populations are non normal in which case both the sample sizes are necessarily large.
So option C is the correct answer.
Answer:
Ok what is the problem
Step-by-step explanation:
Answer:
n=-4
Step-by-step explanation:
Answer:
theres no picture
Step-by-step explanation:
divide bigger number by smaller
when all are divided, they all should be the same.