Solution Found!
Refer to Exercise 9.17. Conduct a two-sample t-test
Chapter 9, Problem 18E(choose chapter or problem)
Refer to Exercise 9.17. Conduct a two-sample t-test (Section 8.2) of the null hypothesis that the two treatment means are equal for each dot plot. Use \(\alpha\ =\ .05\) and two-tailed tests. In the course of the test, compare each of the following with the F-tests in Exercise 9.17:
a. The pooled variances and the MSEs
b. The t- and F-test statistics
c. The tabled values of t and F that determine the rejection regions
d. The conclusions of the t- and F-tests
e. The assumptions that must be made to ensure the validity of the t- and F-tests
Questions & Answers
QUESTION:
Refer to Exercise 9.17. Conduct a two-sample t-test (Section 8.2) of the null hypothesis that the two treatment means are equal for each dot plot. Use \(\alpha\ =\ .05\) and two-tailed tests. In the course of the test, compare each of the following with the F-tests in Exercise 9.17:
a. The pooled variances and the MSEs
b. The t- and F-test statistics
c. The tabled values of t and F that determine the rejection regions
d. The conclusions of the t- and F-tests
e. The assumptions that must be made to ensure the validity of the t- and F-tests
ANSWER:Problem 18E
Refer to Exercise 9.17. Conduct a two-sample t-test (Section 8.2) of the null hypothesis that the two treatment means are equal for each dot plot. Use ? = .05 and two-tailed tests. In the course of the test, compare each of the following with the F-tests in Exercise 9.17:
a. The pooled variances and the MSEs
b. The t- and F-test statistics
c. The tabled values of t and F that determine the rejection regions
d. The conclusions of the t- and F-tests
e. The assumptions that must be made to ensure the validity of the t- and F-tests
Step-by-step solution
Step 1 of 17
The treatment1 means is as follows:
The treatment means for plot#1 is given below
The mean of sample 1 is
The mean of the sample 2 is
The means of sample 1 and sample 2 are 9, 14 respectively for plot#1