NO.PZ2015120604000153
问题如下:
Octavia sets a null hypothesis H0 :σ2 =σ02 and the population is normally distributed. What test statistic is most appropriate to test this hypothesis?
选项:
A.F-test.
B.Z-test.
C.x2 test.
解释:
C is correct.
Because the null hypothesis is H0
請問爲何不能選A