we have two groups, group 1 = a sample of athletes & group 2 = a sample of non-athletes, who are asked about the number of hours they exercise per day. Group 1 had a mean of x₁= 4.5 and Group 2 had a mean ofx₂= 1.7. Sample size for each group wasN₁= 9 andN₂= 9. Standard deviations for group 1 and group 2 ares₁= .9 ands₂= 1.3. We want to know if the sample means differ from one another and decide to do an independent-samplesttest. Please compute the observedt statistic by hand. Report thet statistic usingthree decimal places.