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 over 30. 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) H₀ : $\overline{X}$ ? 30 versus H₁ : $\overline{X}$ 30. B) H₀ : µ ? 30 versus H₁ : µ

Question

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 over 30. 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) H₀ : $\overline{X}$ ? 30 versus H₁ : $\overline{X}$ > 30. B) H₀ : µ ? 30 versus H₁ : µ < 30. C) H₀: $\overline{X}$ ? 30 versus H₁: $\overline{X}$ < 30. D) H₀: µ ? 30 versus H₁: µ > 30.

Quizplus · Accepted Answer

The null hypothesis (H0) should state that the mean age µ is 30 or less, and the alternative hypothesis (H1) should state that the mean age µ is greater than 30, as the owner wants to determine if the mean age is over 30.

The Owner of a Local Nightclub Has Recently Surveyed a Random