In order to use the normal distribution for interval estimation of ( when ( is known and the sample is very small, the population
A.must be very large
B.must have a normal distribution
C.can have any distribution
D.must have a mean of at least 1
Answer:B
In order to use the normal distribution for interval estimation of ( when ( is known and the sample is very small, the population
A.must be very large B.must have a normal distribution C.can have any distribution D.must have a mean of at least 1