Graded chapter 12 problems
- #34: According to Minitab, t.025,199=1.97196. Since
n=200, however, the normal approximation should be pretty good!
- #46: The following is the confidence interval approach to hypothesis
testing. We compute a confidence interval, and see if it includes the
hypothesized mean (=2): if so, we can't reject mu=2, so we fail to
reject the null in favor of the alternative:
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