In testing for differences between the means of two paired populations,the null hypothesis is: A) : = 2. B) : = 0. C) : 0.

Question

In testing for differences between the means of two paired populations,the null hypothesis is:
A) : = 2. 
B) : = 0. 
C) : < 0. 
D) : > 0.

Quizplus · Accepted Answer

The null hypothesis for testing the mean difference between two paired populations is that the difference between the population means is equal to zero. Option B is the only one where the null hypothesis states that the two population means are equal (i.e., difference is zero). Options A, C, and D do not have a null hypothesis stating that the means are equal.

In Testing for Differences Between the Means of Two Paired