Recall Exercise 6.2.28 about comparing quiz scores between students taking notes on paper versus the computer. 

a. Put the data in the Multiple Means applet to create a null distribution and from it calculate a 2SD confidence interval for the difference in mean difference quiz scores between the two types of note-taking groups. 

b. Explain what your interval from part (a) means in context. 

c. Based on your interval, is there strong evidence of a difference in the mean quiz scores between the two types of note-taking groups? Explain how you know.

Data from Exercise 6.2.28

Student researchers at Hope College conducted an experiment to determine whether students memorize material better if they are taking notes on paper using handwriting as opposed to taking notes on a computer. They randomly assigned 20 students to the paper-based note-taking group and 20 students to the computer-based note-taking group. They showed all their subjects a 12-minute video about the sun and they were allowed to take notes in the method they were assigned. After the video was over, the notes were collected, and the students were given a 10-question quiz over information about the sun given in the video. Do students tend to memorize better using hand-written notes? (The results are in the file NoteTaking.)