If a sample of size 41 is selected, the value of A for the ...

[V@ndy87]

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.

[Bsand8]

Answer to Question 1

B

Answer to Question 2

B