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5. a) Using the following data, compute the z-scores for raw scores of 20 and 25....

5. a) Using the following data, compute the z-scores for raw scores of 20 and 25. Data: 19, 26, 18, 16, 21, 18, 26

b) Using the data in #5, calculate the true standard error. Your parameters are µ=18.6; ?? = 4.50; N=7. What does this value indicate about the data?

c) Last semester, Bonnie took a different Biology teacher than her friend Tony. After the final exam, they compared test scores. Bonnie earned an 83 (mean = 75.6, sd = 5), and Tony earned an 87 (mean = 80.3, sd = 7). Who did better? Why?

Please show work so I can learn how to do this.....

Math   Statistics-And-Probability   
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