If a sample of size 41 is selected, the value of A for the probability P(-A t
A) = 0.90 is:
A) 1.303
B) 1.684
C) 2.021
D) 2.423
Question 2
In what type of test is the variable of interest the difference between the values of the observations rather than the observations themselves?
A) a test of the equality of variances from 2 independent populations
B) a test of the difference between the means of 2 related populations
C) a test of the difference between the means of 2 independent populations
D) a test for of equality of variances from two related populations.
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