Question: Ackerman and Goldsmith (2011) found that students who studied text from printed hard copy had better test scores than students who studied from text presented

Ackerman and Goldsmith (2011) found that students who studied text from printed hard copy had better test scores than students who studied from text presented on a screen. In a related study, a professor noticed that several students in a large class had purchased the e-book version of the course textbook. For the final exam, the overall average for the entire class was m= 81.7 but the n= 9 students who used e-books had a mean of M = 77.2 with a standard deviation of s = 5.7.

a. Using a two-tailed test with alpha = .05. can you please explain me if the sample is sufficient to conclude that scores for students using e-books were significantly different from scores for the regular class?

b. How to Construct the 90% confidence interval to estimate the mean exam score if the entire population used e-books. ?

c. In a sentence how can I demonstrate how the results from the hypothesis test and the confidence interval would appear in a research report.

Can you please solve this step by step?

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