Consider the following to answer the question(s) below:
Winnipeg Pet Plus believes that it has a market share of 25 percent of the local dog food market. They survey 100 dog owners and ask whether or not it is their regular source of dog food, and 23 people say "yes."
-In this context, committing a Type I error
A) occurs when they conclude that the percentage of customers using Winnipeg Pet Plus for their dog food is significantly different from 25% when in fact it is not.
B) occurs when they conclude that the percentage of customers using Winnipeg Pet Plus for their dog food is less than 25% when in fact it has not.
C) occurs when they conclude that the percentage of customers using Winnipeg Pet Plus for their dog food is 25% when in fact it has not.
D) occurs when they conclude that the percentage of customers using Winnipeg Pet Plus for their dog food is 25% when in fact it is less than that.
E) occurs when they conclude that the percentage of customers using Winnipeg Pet Plus for their dog food is more than 25% when in fact it is less than that.

Question

Quizplus · Accepted Answer

A Type I error occurs when a true null hypothesis is incorrectly rejected. In this context, it means concluding there is a significant difference from the 25% market share (either more or less) when in reality, there is no such difference.

Consider the Following to Answer the Question(s) Below