For the interval estimation of ( when ( is known and the sample is large, the proper distribution to use is
A.the normal distribution
B.the t distribution with n degrees of freedom
C.the t distribution with n + 1 degrees of freedom
D.the t distribution with n + 2 degrees of freedom
Answer:A
For the interval estimation of ( when ( is known and the sample is large, the proper distribution to use is
A.the normal distribution B.the t distribution with n degrees of freedom C.the t distribution with n + 1 degrees of freedom D.the t distribution with n + 2 degrees of freedom