A researcher desires to know the population mean incubation period of a new strain of the flu. In 27 different experiments, it is determined that the incubation period is 56.3 hours. Assume it is known that population standard deviation is 5.3 hours. Find a 95% confidence interval for the mean incubation period for this new flu strain. Assume the distribution of incubation times is about normal. Then interval will consist of two values. Only enter the smaller of the two values. Round your answer to one decimal place. Your Answer: Answer
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