Calculate z-test statistic to test difference in sat scores

Reference no: EM13126853

Calculate the z-test statistic to test the difference in SAT math scores from students in Delaware and New jersey. A sample of 45 students from Delaware had an average score of 560 with a standard deviation of 110 while a sample of 40 New Jersey students had an average score of 530 with a standard deviation of 115.

Reference no: EM13126853

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