求解.... 这题太怪了, 书上竟然找不到答案...

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An analyst constructed the following hypothesis test:
H0: b = 0
H1: b > 0
The null hypothesis means that:
A. the dependent variable is sensitive to changes in the independent variable.
B. the independent variable is sensitive to changes in the dependent variable.
C. changes in the dependent variable do not explain changes in the independent variable.
D. changes in the independent variable do not explain changes in the dependent variable.

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关键词：Independent constructed HYPOTHESIS Dependent Sensitive 求解

很明显选择D项啊

thanks  a lot ,