Question:

Jessica wondered it elementary school students tend to write more when they are given a larger amount of space in which to write. To investigate. she asked 100 fourth and lth grade students to respond to the totlowing prompt: 'Do you like recess? Why or why not?\" About half of the students were randomly assigned to use a larger phi-sheet ct paper lo write their response and the remaining students were assigned a smaller \"Ii-sheet of paper. Atter the students nished, Jessica counted the number oi words in each response. Summary statistics for each group are shown in the table. Group Standard Deviation LaI-er sheet a 18-3 8.5 Smaller sheet _IE 7.9 1} Calculate and interpret a 95% confidence interval for the difference in mean number of words written for students like these who are asked to respond to the prompt on either a 1f4sheet of paper or a Vrsheet of paper. 2) Based only on the confidence interval, is there convincing evidence that the size of the paper affects the mean number of words written for students like these