February 24, 2017

Homework Help: statistics

Posted by Anonymous on Thursday, March 22, 2012 at 3:03pm.

Calculate the z-score for each set of data. Determine who did better on her respective test, Tonya or Lisa.
Student English Test Grade z-Score Student Math Test Grade z-Score
John 82 Jim 81
Julie 88 Jordan 85
Samuel 90 Saye 79
Tonya 86 Lisa 82
Mean 86.50 81.75
St. Dev. 3.42 2.50
Given the above information, predict the raw score for a student whose z-score in the Math test is .98.

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