Answer to Question #84852 in Statistics and Probability for Bob

Question

Twenty children are selected for a study on daily soda and milk consumption. The differences in consumption (Soda minus Milk) have a mean of 20 ml with a stand dev of 33 ml.(2-sided test)
Suppose we use the critical value method to conduct the test. We reject H0 if:
a. t ≥ 2.093 or t ≤ -2.093
b. t ≤ -2.093
c. t ≥ 1.729 or t ≤ -1.729
d. t ≥ 1.729
e. t ≥ 2.093
f. t ≤ -1.729

If the ME is used to construct a confidence interval we:
A) fail to reject H0 at the 5% level of significance since the value 0 is not contained in the 95% confidence interval
B) fail to reject H0 at the 5% level of significance since the value 0 is contained in the 95% confidence interval
C) reject H0 at the 5% level of significance since the value 20 is contained in the 95% confidence interval
D) reject H0 at the 5% level of significance since the value 0 is not contained in the 95% confidence interval
E)fail to reject H0 at the 5% level of significance since the value 20 is contained in the 95% confidence interval