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In: Statistics and Probability

At a medical care facility, the staff receieves a telephone call from patients.Any questions or request...

At a medical care facility, the staff receieves a telephone call from patients.Any questions or request are referred directly to medical doctors who return the patient's call at a later time. A local patient care society claims that this medical care facility takes longer than two days to respond to questions and requests. From a random sample of 84 calls collected over a one-week period, the average time to return the call was 2.18 days. Assume the standard deviation of the length of time to return a call was 2.18 days. a) Identify the parameter of interest b)state the null and alternative hypotheses of interest. c) Are the conditions satisfied for the test you plant to conduct? explain. d)calculate and sketch the p-value of this test. e) what is your conclusion at 5% significance level. f) construct and interpret a 90% confidence interval for the parameter of interest in part a)

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