30 students take a pre-test for their knowledge of statistics on the first day of class for the semester. Their mean score was 4

Question

3 years ago

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30 students take a pre-test for their knowledge of statistics on the first day of class for the semester. Their mean score was 4

0% correct (s = 5.00). Then on the comprehensive final exam you note that their mean score was 70% correct (s = 6.00). The standard deviation of the difference between the 2 means (40 vs. 70) is 4.00.

SAT

1 answer:

yulyashka [42] · Answer 1 · 2022-07-27T14:33:21+03:00

yulyashka [42]3 years ago

8 0

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