The null hypothesis for a nondirectional H 1 using the t test for correlated groups asserts that _________.
A) µ 1 - µ 2 = 0
B) µ D = 0
C) = 0
D) D - = 0
E) none of these

Question

The null hypothesis for a nondirectional H 1 using the t test for correlated groups asserts that _________.
A) µ 1 - µ 2 = 0 
B) µ D = 0 
C) = 0 
D) D - = 0 
E) none of these

Quizplus · Accepted Answer

The t test for correlated (or paired) groups compares the mean difference between two related groups to determine if there is a statistically significant difference between them. The null hypothesis for a nondirectional H1 using this test asserts that the population mean difference (µD) between the two groups is equal to zero. Therefore, the correct answer is B, µD = 0.

The Null Hypothesis for a Nondirectional H 1 Using the T