A sample of 51 COVID-19 patients had a mean incubation time of 6.7 days, and a standard deviation of 4.0 days. Find and interpret a 90% confidence interval for the mean incubation time for COVID-19. Round your final answer to one decimal place. Please show all work and explanations so i can better understand please and thank you! We are 90% confident the incubation time is between  __?__days and  __?__days

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