Q1)

In a random sample of 743 patients in a hospital emergency room, the mean wait time was 38.7 minutes. Suppose it is known that the population standard deviation is 4.5 minutes. Answer the following questions. If it is not possible to answer a question, use M as your answer. a. What is the population mean wait time for all emergency room patients at this hospital? Select an answer v : b. What is the point estimate for the population mean? Select an answer v : c. What is the population standard deviation? o ( K. d. What is the sample standard deviation? Select an answer v : The confidence interval for the population mean is often presented as Lower Limit