Refer to Exercise 6 23 In exercise a What is the level
Refer to Exercise 6.23.
In exercise
a. What is the level of significance of the paired t test?
b. What is the level of significance of the sign test?
c. Place a 95% confidence interval on the mean difference between the responses from the two treatments.
d. Which of the two procedures, the paired t test or the sign test, appears to be more valid in this study?
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