推 inzee:B 10/22 18:50
推 blue0429:B 我的想法是 Z值是正的 X-100/S =3.29 10/22 22:03
4. The P-value for testing H0: μ=100 against Ha: μ≠100 is P=0.001. This
indicates that
A. There is strong evidence thatμ=100.
B. There is strong evidence thatμ≠100.
C. There is strong evidence thatμ>100.
D. There is strong evidence thatμ<100.
這題的答案顯然是B，可是下面那題就怪怪的，請高手幫忙一下。
5 Refer to Question 4. Suppose the value of the test statistic was z = 3.29.
Then
A. There is strong evidence thatμ=100.
B. There is strong evidence thatμ>100.
C. There is strong evidence thatμ<100.
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