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A consumer advocate claims that 80 percent of cable television subscribers are not satisfi ed 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 satisfi ed 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, fi nd (1) The probability that more than 20 subscribers in the sample are not satisfi ed with their service. (2) The probability that 15 or fewer subscribers in the sample are not satisfi ed with their service. (c) Suppose that when we survey 25 randomly selected cable television subscribers, we fi nd that 15 are actually not satisfi ed 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
State the null hypothesis. Calculate the difference between the proportions or means. Calculate the standard' error of the difference in proportions or means.
conceptual questionswhat is the difference between descriptive and inferential statistics?what are the five
quantitative analysis for decision making course assignment. 1- graphical solutions in linear programming have limited
Perform a hypothesis test of H0
Test the Administration's claim
Use data from all networks, not just CBC movies and how well does this regression analysis explain the ratings?
The National Association of Colleges and Employer
Identify the type of study proposed and indicate its specific strengths and weaknesses
Rob rales is preparing a report that his employer will eventually deliver to the FFA. First, the report must be approved by both of his two supervisors. Each of these supervisors acts independently in the review of these reports. Supervisor A ..
Find the probability the mean of the sample and the only adjustment might be using the p-value from a computer program (like SAS), rather than writing a rejection region.
a) Conduct a crosstabs analysis to examine the proportion of female high school students who take advanced math courses is different for different levels of the parent variable.
Find the probability that there are exactly 2 prescriptions for this drug in a given week and find the probability that there are no more than 5 prescriptions for this drug in a given week.
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