subject
Mathematics, 12.03.2021 14:50 joejoe247

A consumer advocate claims that 80 percent of cable television subscribers are not satisfied with their cable service. In an attempt to justify this claim, a randomly selected sample of cable subscribers will be polled on this issue. a. Suppose that the advocate’s claim is true, and suppose that a random sample of five cable subscribers is selected. Assuming independence, use an appropriate formula to compute the probability that four or more subscribers in the sample are not satisfied with their service.
b. Suppose that the advocate's claim is true, and suppose that a random sample of 25 cable subscribers is selected. Assuming independence, find each of the following:

1. The probability that 15 or fewer subscribers in the sample are not satisfied with their service.
2. The probability that more than 20 subscribers in the sample are not satisfied with their service.
3. The probability that between 20 and 24 (inclusive) subscribers in the sample are not satisfied with their service.
4. The probability that exactly 24 subscribers in the sample are not satisfied with their service.
5. Suppose that when we survey 25 randomly selected cable television subscribers, we find that 15 are actually not satisfied with their service. Using a probability you found in this exercise as the basis for your answer, do you believe the consumer advocate's claim? Explain.

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 12:30, wizewolf
Anumber cube is rolled and a coin is tossed. the number cube and the coin are fair. what is the probability that the number rolled is less than 4 and the coin toss is tails?
Answers: 2
image
Mathematics, 21.06.2019 14:10, jess1547
Will give brainliest summations with algebraic expressions image shown
Answers: 1
image
Mathematics, 21.06.2019 17:00, DivineMemes420
100 points, hi, i’m not sure what to do here, the data doesn’t seem to be quadratic .? can anyone me, in advance
Answers: 2
image
Mathematics, 21.06.2019 22:30, miami158999
Agallon of apple juice cost $7 a pack of eight 4.23oz box of apple juice $2.39 which is a better deal
Answers: 1
You know the right answer?
A consumer advocate claims that 80 percent of cable television subscribers are not satisfied with th...

Questions in other subjects:

Konu
Mathematics, 20.01.2021 21:40
Konu
Mathematics, 20.01.2021 21:40
Konu
Mathematics, 20.01.2021 21:40
Konu
Mathematics, 20.01.2021 21:40