15. When we use n random samples to obtain the OLS regression function the coefficient of determination 2 R is not equal to (A) (B) (C) (D)

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.

15. When we use n random samples to obtain the OLS regression function the coefficient of determination 2 R is not equal to
(A)
(B)
(C)
(D)

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