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☐ A
A. (ii)
B. (i)
☐ E
C. None of the other choices is correct.
D. (iii)
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E. (iv)
FUQ.sh
sh the exam.
The owner of a local nightclub has recently surveyed a random sample
of n = 250 customers of the club. She would now like to determine
whether or not the mean age of her customers is equal to 30. If so, she
plans to alter the entertainment to appeal to an older crowd. If not, no
entertainment changes will be made. If she wants to have a level of
significance at 0.01, what rejection region should she use?
Let t0.01:249 = 2.3414; to.005;249
= 2.5957
(i)
(ii)
(iii)
Reject Ho if test statistic t<-2.3414
Reject Ho if test statistic > -2.5957
Reject Ho if test statistic > 2.3414
(iv)
Reject Ho if test statistic < 2.5957
