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A consumer advocate claims that 65 percent of cable television subscribers are not satisfied with their...

A consumer advocate claims that 65 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.

Round 'p =' answers to two decimal places. Round all other probabilities to four decimal places.

(a) Suppose that the advocate's claim is true, and suppose that a random sample of 7 cable subscribers is selected. Calculate the probability that 6 or more subscribers in the sample are not satisfied with their service.

Binomial, n =  , p =      

Probability =      

(b) Suppose that the advocate's claim is true, and suppose that a random sample of 20 cable subscribers is selected.

Binomial, n =  , p =

Calculate the following:

1. The probability that 10 or fewer subscribers in the sample are not satisfied with their service.

Probability             

2. The probability that more than 14 subscribers in the sample are not satisfied with their service.


Probability               


3. The probability that between 14 and 16 (inclusive) subscribers in the sample are not satisfied with their service.


Probability             


4. The probability that exactly 16 subscribers in the sample are not satisfied with their service.


Probability             

Math   Statistics-And-Probability   
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