Question

QUESTION 1 When necessary conditions are met, a one tailed test is being conducted to test the difference between two populations. If the test statistics is 2:14, the p-value is

(1) 0:9838

(2) 0:0162

(3) 0:0179

(4) 0:1075

(5) 0:8925

QUESTION 2 Independent random samples of sizes n1 D 16 and n2 D 20 were selected from populations with parameters 1 D 10; 1 D 2; 2 D 20 and 2 D 2:8284: The E-tutor wants to test if the two population means are different. Which one of the following statements is incorrect?

(1) H0 : 12D0 vs H1:126D0

(2) The standard error for Nx1 Nx2 is 0:8602:

(3) The critical value at 5% level is 1:96:

(4) The rejection region is z > 1;96 and z < 1;91:

(5) Nx1 N x2 is normally distributed if the populations are normal.

Answer 1

My dear student i am allowed to solve one question at a time . So i am solving the first one in the pic. Thank you

2 test stalistic . 9.04 one tailed test 12.64 Pralue = 0,016177 a stat Pralue for a stat = 9.14 is Ĉ 0.016 177 so (using zo Table) Pralue = 0.016177 10.0162 option [ ]