a. The critical statistic for tα/2 that corresponds to a confidence level of 98% for a sample of
size n = 29 is 2.462.
b. For a two-tailed hypothesis test with α = 0.05 and P-Value equal to 0.0415, the correct decision is to Reject H0.
c. The critical statistic for Χ2 (RIGHT) corresponding to a sample size of 12 and significance level of 1% is 19.675.
d. Carter Motor Company claims that its new sedan, the Libra, will average better than 32 miles per gallon in the city. The alternative hypothesis is H1 : μ < 32.