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Could you solve the questions please? THANK YOU SO MUCH!!! Anna's project for her introductory statistics course was to compare the selling prices of textbooks
Could you solve the questions please? THANK YOU SO MUCH!!!
Anna's project for her introductory statistics course was to compare the selling prices of textbooks at two internet bookstores. She first took a random sample of 10 textbooks used that term in courses at her college, based on the list of texts given by the college bookstore. The prices ($) of those textbooks at the two internet sites were given below. Textbook Textbook1 Textbook2 Textbook3 Textbook4 Textbook5 Textbook6 Textbook7 Textbook8 Site A 115 79 43 140 99 30 80 99 Site B 110 79 40 129 99 30 69 99 Let /1 and /2 represent the mean cost of textbooks for Site A and Site B, respectively. Answer the following questions.Question 1 6 pts Complete the following R-code, which is used to find the required t-score to calculate 97% confidence interval for the mean difference, /1 - /2. lower.tail=FALSE) Question 2 2 pts What is the required t-score to calculate 97% confidence interval for the mean difference, M1 - /2? (Give the answer to the nearest third decimal place) Question 3 4 pts Find the 97% confidence interval for the mean difference, /1 - /2. (Give the answers to the nearest third decimal place)Step by Step Solution
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