8. The owner of a local nightclub has recently surveyed a random sample of n = 300 customers of the club. She would now like to determine whether or not the mean age of her customers is over 35. If so, she plans to alter the entertainment to appeal to an older crowd. If not, no entertainment changes will be made. The appropriate hypotheses to test are:
(A) \( H_{0}:\mu \geq 35 \) vs. \( H_{a}:\mu < 35 \)
(B) \( H_{0}:\mu \leq 35 \) vs. \( H_{a}:\mu >35 \)
(C) \( H_{0}:\overline{\mathbf{X}}\geq 35 \) vs. \( H_{a}:\overline{\mathbf{X}} < 35 \)
(D) \( H_{0}:\overline{\mathbf{X}}\leq 35 \) vs. \( H_{a}:\overline{\mathbf{X}} >35 \)
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統計: 尚無統計資料
統計: 尚無統計資料