Author Question: From the following Minitab output, what can be concluded regarding the difference in the mean PO2 ... (Read 340 times)

s.tung · **on:** Jun 24, 2018

From the following Minitab output, what can be concluded regarding the difference in the mean PO₂ levels for the two populations?

a.The control and treatment groups are not significantly different at the

significance level.
b.The control and treatment groups are not significantly different at the

significance level.
c.The mean of the control group is significantly lower than the mean of the treatment group at the

significance level.
d.The mean of the control group is significantly higher than the mean of the treatment group at the

significance level.

Question 2

What are the number of degrees of freedom for the pooled estimator

if n₁ = 30 and n₂= 40?

a.10
b.40
c.30
d.68

jrpg123456 · **Reply #1 on:** Jun 24, 2018

Answer to Question 1

correct: c

Answer to Question 2

correct: d

s.tung · **Reply 2 on:** Jun 24, 2018

Thanks for the timely response, appreciate it

momolu

Excellent