*MUST SHOW WORK* A researcher designed a study to find out the effectiveness of two teaching methods: lecture-style vs. discussion-style. He compares the test scores of the students taught with these two different methods. The scores on the test range from 0 to 41 with higher scores indicating better performance. The test results are provided in the table below: Group Methods n M SS 1 lecture-style 15 24 336 2 discussion-style 15 28 392 a. Do students taught with the discussion style perform better than those taught with the lecture style? Use the .05 significance level for the one-tailed test. Show the four steps of hypothesis testing, and describe the hypotheses and conclusion in words as well as notations b. Compute (show calculation steps) and interpret r2
*MUST SHOW WORK*
A researcher designed a study to find out the effectiveness of two teaching methods: lecture-style vs. discussion-style. He compares the test scores of the students taught with these two different methods. The scores on the test
Group Methods n M SS
1 lecture-style 15 24 336
2 discussion-style 15 28 392
a. Do students taught with the discussion style perform better than those taught with the lecture style? Use the .05 significance level for the one-tailed test. Show the four steps of hypothesis testing, and describe the hypotheses and conclusion in words as well as notations
b. Compute (show calculation steps) and interpret r2
Step by step
Solved in 6 steps with 5 images
