The director of Human Resources at a large company wishes to determine if newly instituted training has been effective in reducing work-related injuries. The director used a random sample of 100 employees taken from the six months before this training began to estimate the proportion p1 who suffered work-related injuries and a random sample of 150 employees taken from the six months since the training began to estimate the proportion p2 who suffered work-related injuries to test the hypotheses H0: p1 =< p2, Ha: p1 > p2.

The director's sample results did not reject the null hypothesis. If the new training is in fact effective in reducing work-related injuries, the director:

	A.	has made the correct decision.
	B.	is not very good at her job.
	C.	made a Type I error.
	D.	made a Type II error.