07.02 MC) Atticus, a CrossFit instructor at Mighty Box, is interested in compari
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Question
07.02 MC) Atticus, a CrossFit instructor at Mighty Box, is interested in comparing levels of physical fitness of students attending a nearby community college and those attending a four-year university in town. He selects a random sample of 315 students from the community college. The mean and standard deviation of their fitness scores are 98 and 20, respectively. He also selects a random sample of 315 students from a four-year university. The mean and standard deviation of their fitness scores are 101 and 22, respectively. He then conducts a two-sided t-test that results in a t value of 1.79. Which of the following is an appropriate conclusion from this study when a 0.08? (4 points) Because the p-value is less than a = 0.08, the mean fitness scores for the two groups of students are significantly different. Because the p-value is greater than a = 0.08, the mean fitness scores for the two groups of students are not significantly different. Because the sample means only differ by three, the population means are not significantly different. Because the second group had a larger standard deviation, their mean fitness score is significantly higher. Because the second group had a larger standard deviation, the mean fitness score of the first group is significantly higher.Explanation / Answer
here for two tailed test p value is less than 0.08 level for given data
because the p value is less than alpha =0.08 ;the mean fitness scores for two groups of students are significantly different.
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