Question

Question 10 1. Report the z scores for each of the four (4) subjects. 2. Briefly explain how you made those calculations (that is, describe in words how you set up the formula) 3. Billy had a better performance in 4. Billy had a weaker performance in Consider Billy's scores on four final exams, along with the class means and standard deviations. Using the following information and the appropriate formula, indicate in which subject Billy had the better (strongest) performance and indicate in which subject he had the worse (weakest) performance? Subject Score Class Average Class Standard Deviation English History Physical Science Statistics 18 A A A TTT Arial (12pt)

Answer 1

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Ans (6) 2-score = x . S. х Z-score 85 70 3 180 75 go 70 9 s -1 Billy had a better performance English, physical science. in Billy had a wealer persermance in History , statistics