This is all about Mann-Whitney U Test. Answer what is required in bold letters . Provide manual and excel computations. Thank you

l'trlann"r'hitnegsr UTest Q Doctors conducted clinical trial designed to investigate the e'ectiveness of a new drug to reduce symptoms of heart and lung problems among patients. A total of n=1 8 participants are randomized to receive either the new drug or a placebo. Participants are asked to record the number of episodes of shortness of breath over a 1week period following receipt of the assigned treatment. The data are shown below. Is there a difference in the number of episodes of shortness of breath over a 1-week period in participants receiving the new drug as compared to those receiving the placebo? Ev inspection, it appears that participants receiving the placebo have more episodes of shortness of breath= but is this statistically significant? Identif}r the following: i Hypothesis (5 points} Ir Sample size and alpha level or level of signicance (5 points) 0 Critical value of U and set up decision rule {5 points} Ir Step by step computation of U 39' Manual computation {attach picture) {10 points} 39' Computation using excel {attach screenshnt} (Ill points) Ir AnalysisiEvaluation of statistic {5 points}