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Question 2 You ask a friend of yours to run the following model on 324 books: E (pages in boole) = o + B1 (century of publication) + zchinese + gother where \"pages in book\" is the number of pages, \"century of publication\" can take on {16, 17, 18, 19, 20, 21}, and \"chinese\" and \"other\" are dummy variables for the language of the book (reference = english). Your friend, not having taken this class, provides you only with the following: 121.7 14.2 6.6 2.1 5.7 A 12.0 A A 4.6 3.6 3.1 3' 16.8 ' VMBIX)' 7.9 3.6 39.4 9.2 Your stubborn \"friend\" now refuses to provide any other results. From this output, answer the following: a) Is there a relationship between century of publication and length of books? b) Are chinese books different length on average than english books? 0) Are chinese books different length on average that \"other\" books? d) Provide an estimated 95% condence interval for the average difference in length between chinese and english books