1. In a Hypothesis test, which uses the t distribution, the t critical values ch

Question

1. In a Hypothesis test, which uses the t distribution, the t critical values change depending on the degree of freedom,the alpha level & whether or not the test is one tailed or two tailed. This is also true for the Z distribution?

a. False, Z critical values are dependent on the alpha level and whether or not the test is one tailed or two tailed.

b. True, Z critical values are dependent on the same three factors    

c. False, Z critical values are only dependent on the alpha level

2. The null hypothesis for an independent-measures t test is:

a. M1 = M2

b. µ1 = µ2    µ1

c. does not equal µ2

d. M1 does not equal M2

Explanation / Answer

1) option a

False . Z critical value depends up on alfa level and whether or not the test is one tailed or two tailed test .

2) option b

Mu1 = mu2

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