SOLUTION: 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 t
Algebra ->
Probability-and-statistics
-> SOLUTION: 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 t
Log On
Question 1158231: 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 p-value? a 0.3461
b. 0.1539
c. 0.3078
d. 0.0100 Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! assuming randomness, this is a one-sample proportion
z=(p hat-p)/sqrt (p*(1-p)/n)
=-0.05/sqrt(.41*.59/100)
=0.3078
C
Note: I interpret this as a two way test. Nowhere did it say "at least 41%" but only 41%. If it were a one way test, the p-value would be half of this.
