Based on the Nielsen ratings, the local CBS affiliate claims its 11:00 PM newscast reaches 41% of the viewing audience in the area. In a survey of 100 viewers, 36% indicated that they watch the late evening news on this local CBS station. What is the null hypothesis?
A) $\pi$ = 0.36
B) $\pi$ = 0.41
C) $\pi$$\neq$ 0.36
D) µ = 0.41

Question

Quizplus · Accepted Answer

The null hypothesis should reflect the claim made by the local CBS affiliate, which is that their 11:00 PM newscast reaches 41% of the viewing audience. Therefore, the correct null hypothesis is that the proportion of viewers who watch the late evening news on this local CBS station is equal to 0.41. Option A is incorrect because it is missing the population parameter symbol (π). Option C is incorrect because it includes a not equal sign, which would suggest a two-tailed hypothesis rather than a one-tailed hypothesis. Option D is incorrect because it does not specify a hypothesis about a proportion.

Based on the Nielsen Ratings, the Local CBS Affiliate Claims π\piπ

Based on the Nielsen Ratings, the Local CBS Affiliate Claims $\pi$