Q . Ten athletes ran a 400 metres race at sea level and at a later meeting ran other 400 metres race at altitude . Their time in seconds were as followsRunner Seal-level elevatedA 48 .5 50 .6B 47 .6 47 .3C 49 .2 50 .8D 50 .7 52 .3E 48 .8 47 .7F 51 .1 55 .3G 49 48 .9H 48 .1 49 .9I 50 .7 54 .8J 47 .6 48 .5 Use a qualified parametric procedure to test the hypothesis that the athlete s performances be not affected by altitudeThe parametric procedure apply will be t-test : Paired Two Sample for MeansStep 1 : The Null and Alternate HypothesesSince we have no reason to be interested in directionality , we will choose a two-tailed test using these hypotheses :Step 2 : The Decision reign over -2 .262 .
The decision practice isif t 2 .262 The decision rule is shown in below figure 1Figure 1 : Decision ruleStep 3 : Calculate the Test StatisticThe mean and standard deviation ar calculated in the usual way , as shown in Table 1 , so the test statistic is Table 1Runner Seal-level Altitude DifferenceA 48 .5 50 .6 -2 .1B 47 .6 47 .3 0 .3C 49 .2 50 .8 -1 .6D 50 .7 52 .3 -1 .6E 48 .8 47 .7 1 .1F 51 .1 55 .3 -4 .2G 49 48 .9 0 .1H 48...If you lack to get a full essay, order it on our website:
Ordercustompaper.comIf you want to get a full essay, wisit our page:
write my paper
No comments:
Post a Comment