16. In general, we use_________ to test whether the variance of two populations are equal. (A) z-test (B) t-test (C) X2 test (D) F test

11. To test that per capita GDP of Taiwan in 2019 is no less than twenty thousand US dollars, if the significant level is 5%, which of the following statement is true? (A) Two tailors test is needed. (B) Right tailor is needed. (C) If the P-value is 0.03, then we cannot rejected null hypothesis. (D)For a given sample, the P-value is negatively related to the per capita GDP level that we want to test.

16. In general, we use_________ to test whether the variance of two populations are equal.
(A) z-test
(B) t-test
(C) X² test
(D) F test

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