In a hypothesis test for the population variance, the hypotheses are H0: ?2 = 30 vs. H1: ?2 < 30 . If the sample size is 20 and the test is being carried out at the 5% level of significance, the null hypothesis is rejected if:
a. ?2 < 30.144.
b. ?2 > 10.851.
c. ?2 < 10.117.
d. ?2 > 31.410.
C
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Refer to the Figure to accompany Table 7.1. Which one of the following is the critical path?
A) ABDG B) ABEG C) ACEG D) ACFG
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