Mathematics, 30.11.2019 01:31 duhitsmiracle59

The mean score for freshmen on an aptitude test at a certain college is 540, with astandard deviation of 50. assume the means to be measured to any degree ofaccuracy. what is the probability that two groups selected at random, consisting of32 and 50 students, respectively, will differ in their mean scores by (a) more than20 points

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The mean score for freshmen on an aptitude test at a certain college is 540, with astandard deviatio...