10. A teacher gives 200 students a study guide for a test and the

Ask a New Question

10. A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did not give the other 200 students a study guide and their average score was 70 with a standard deviation of 8. Find the critical value to determine whether or not the study guide helped students to increase their test score.

Ask a New Question or answer this question.

Similar Questions

A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did not
1. 1 answer
10. A teacher gives 200 students a study guide for a test and the average score was 90 with a standard deviation of 6. She did
1. 1 answer
A teacher knows that 80% of her students will score no more than 5 points above or below the class average, 85%, on the test.
1. 7 answers
The score for half of the students in a class on a certain test was 90. The score for another fourth of the students was 84. if
1. 1 answer

more similar questions