Testing the null hypothesis that the slope of the true regression line equals zero is equivalent to testing whether the true coefficient of correlation could be zero. Why?

If the slope of the true regression line is zero, then the true coefficient of correlation is also zero. Both of these cases imply no linear relationship between the dependent variable (y) and the independent variable (x).

Business

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Which statement about options is FALSE?

A. Consideration is necessary for a valid option. B. The optionee has the option to exercise or refrain from exercising the option. C. The optionor can revoke the option by returning the consideration. D. Options can be assigned unless personal in nature or prohibited by the option terms.

Business

In a buying center of a large company, the purchasing agent is normally the:

A) user B) buyer C) decider D) gatekeeper

Business