QUESTION 18. USING "R" CODE DO THE BELOW QUESTION:

1. A randomized trial was conducted to determinewhetherDexamethasoneisan effective treatment for individuals with severe COVID-19.The study sampled 24 individuals and broke them up into two groups. Group 1 was given the drug for treatment and group 2 was given a placebo (sugar pill). The goal of the study was to determinewhetherDexamethasonereducedthe length of hospital stay. The data is below:

Group 1 = [5,2,3,4,6,5,3,7,2,3,4,3]

Group 2 = [6,4,5,3,4,5,7,9,8,7,6,7]

Use the five-step procedure discussed in class to determine whether Dexamethasone reduced the length of hospital stay at the 0.05 significance level (Setup the null and alternative hypotheses, choose a test-statistic, state the decision rule, compute the test-statistic, state your conclusion).