Post by: dhsndn on Mar 25, 2023
Question 1
The sampling distribution of 
is approximated by a
◦
normal distribution
◦
t-distribution with n1 + n2 degrees of freedom
◦
t-distribution with n1 + n2 - 1 degrees of freedom
◦
t-distribution with n1 + n2 + 2 degrees of freedom
Question 2
We are interested in testing the following hypotheses.
H0: P1- P2 = 0
Ha: P1- P2≠ 0
The test statistic Z is computed to be 2.0. The p-value for this test is
◦
0.9772
◦
1.9544
◦
0.0228
◦
0.0456
Post by: koswald on Mar 25, 2023
Answer 1
normal distribution
Answer 2
0.0456