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A mayor of a large city wants to know how long it takes the police in his city to respond to a call for service.
A mayor of a large city wants to know how long it takes the police in his city to respond to a call for service. In a random sample of 15 citizens who called the police for service, the mayor's research director found that the average response time was 560 seconds, with a standard deviation of 45 seconds. Construct a 95% confidence interval around your point estimate. What would you say to your mayor? Using excel
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