Question

0.2 A sociologist is concerned about the effectiveness of a training course designed to get more drivers to use seat belts in automobiles. (a) What hypothesis is she testing if she commits a type I error by erroneously concluding that the training course is ineffective

Answer 1

The sociologist would be committing a Type I error if she concludes that the training course is ineffective when it is actually effective. The consequence of a Type I error is that the sociologist would incorrectly reject a true claim, which could lead to the implementation of an ineffective training course.

Step-by-step explanation:

Type I error occurs when a true null hypothesis is rejected, erroneously concluding that the training course is ineffective. In this case, the sociologist would be committing a Type I error if she concludes that the training course is ineffective when it is actually effective. The consequence of a Type I error is that the sociologist would incorrectly reject a true claim, which could lead to the implementation of an ineffective training course.

Answer 2

A Type I error made by a sociologist on seat belt training effectiveness would mean incorrectly concluding the course is ineffective when it actually is.

Step-by-step explanation:

If a sociologist commits a Type I error when evaluating the effectiveness of a training course for seat belt usage, this means she has rejected a true null hypothesis. Specifically, the hypothesis being tested would be that the training course is effective at increasing seat belt use. Therefore, a Type I error in this context would involve erroneously concluding that the training course is not effective when it actually is. The sociologist would be wrong in asserting that the course doesn't have the desired impact on driver behavior.