Question: A certain university has decided to introduce the use of plus and minus with letter grades, as long as there is evidence that more than

A certain university has decided to introduce the use of plus and minus with letter grades, as long as there is evidence that more than 60% of the faculty favor the change. A random sample of faculty will be selected, and the resulting data will be used to test the relevant hypotheses. If p represents the proportion of all faculty that favor a change to plus–minus grading, which of the following pair of hypotheses should the administration test: Ho, p = . 6 versus H p.6 Ho: p 6 versus

H: p6

Explain your choice.

Ho, p = . 6 versus H p.6 Ho: p 6 versus H: p6

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