Exhibit 19-1
Fifteen people were given two types of cereal, Brand X and Brand Y. Two people preferred Brand X and thirteen people preferred Brand Y. We want to determine whether or not customers prefer one brand over the other.
-Refer to Exhibit 19-1. At 95% confidence, the null hypothesis should
A)be rejected
B)not be rejected
C)be revised
D)None of these alternatives is correct.

Question

Quizplus · Accepted Answer

The null hypothesis states there is no preference between the brands. With 13 out of 15 preferring Brand Y, the data strongly suggests a preference, leading to rejection of the null hypothesis at 95% confidence.

Exhibit 19-1 Fifteen People Were Given Two Types of Cereal, Brand X