Question: step by step Question 4) Interested in finding the most effective study guide for his students, a tutor wants to compare results of a video

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Question 4) Interested in finding the most effective study guide for his students, a tutor wants to compare results of a video versus a text. She assigns half of her 18 students the video and the second half the text. The video group had a mean number of 19 questions right on the test pounds with a standard deviation of 1.5 questions | The group using the text had a mean number of 17 questions right with a standard deviation of 1 question. The tutor cannot assume the same variance for each study method. Using a 99% confidence level, do the two methods produce the same result? State the hypothesis, answer and interpretation. (4 Marks)

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