The proportion of dental procedures that are extractions is 0.16. Which of the following exemplifies a Type I error in this situation?
A)We reject the claim that the proportion of dental procedures that are extractions is 0.16 when the proportion is actually different from 0.16.
B)We fail to reject the claim that the proportion of dental procedures that are extractions is 0.16 when the proportion is actually 0.16.
C)We reject the claim that the proportion of dental procedures that are extractions is 0.16 when the proportion is actually 0.16.
D)We fail to reject the claim that the proportion of dental procedures that are extractions is 0.16 when the proportion is actually different from 0.16.

Question

Quizplus · Accepted Answer

A Type I error occurs when we reject a null hypothesis that is actually true. In this case, the null hypothesis is that the proportion of dental procedures that are extractions is 0.16. If we reject this null hypothesis when the true proportion is actually 0.16, then we have made a Type I error. Option C describes this scenario.

The Proportion of Dental Procedures That Are Extractions Is 0