12: An exercise physiologist was interested in the effects of smoking on sprint times. There were three groups of people studied, all adult men between 30 and 35 years of age. One group consisted of nonsmokers. One group consisted of past smokers. One group consisted of current smokers. All three groups were simple random samples from normally distributed populations and each group had a sample size of 21. Non Past Current Smoker Smoker Smoker 6.48 7.14 6.95 6.1 7.76 6.82 4.29 6.97 6.79 5.99 5.26 7.9 6.49 7.91 6.67 6.53 6.69 8.37 5.24 8.62 6.59 5.84 6.87 8.47 6.46 7.02 7.55 6.54 8.46 7.59 5.36 6.72 9.01 6.54 5.8 7.3 6.76 7.51 7.08 7.06 7.08 9.46 4.04 7.45 6.67 6.09 7.16 5.23 7.48 4.05 8.86 5.02 6.61 8.07 4.44 8.82 4.26 7.05 6.9 9.24 8.69 7.57 8.17 At the 0.05 significance level, test the claim that the mean sprint time is the same for all three populations. You can use StatCrunch for this problem, but briefly describe what the test statistic is showing us about the means of these samples