Q1. [Total 10 points] Jillian Minutillo conducted a research a random sample of 49 Covid-19 patients. The average recovery time of the patients in the sample was 18 days with a standard deviation of 5 days. What is the 95% confidence interval for the population mean average recovery time (mu)? To answer the question, follow the steps below: a. [5 points] n = x-bar = S= df = t* or t(n-1) = b. [5 points] Calculate the confidence interval (CI) for mu below: CI=