Assume that a hypothesis test to reject the given claim will be conducted. Identify the type I or type II error for the test.
-A cereal company claims that the mean weight of the cereal in its packets is 14 oz. Identify the type I error for the test.
A) Fail to reject the claim that the mean weight is 14 oz when it is actually different from 14 oz.
B) Reject the claim that the mean weight is different from 14 oz when it is actually 14 oz.
C) Reject the claim that the mean weight is 14 oz when it is actually 14 oz.
D) Reject the claim that the mean weight is 14 oz when it is actually greater than 14 oz.

Question

Quizplus · Accepted Answer

A type I error occurs when the null hypothesis is true, but we incorrectly reject it. Here, the null hypothesis is that the mean weight is 14 oz. So, rejecting this claim when it is actually true is a type I error.

Assume That a Hypothesis Test to Reject the Given Claim