The average price of a college math textbook is $167 and the standard deviation is $25. Suppose that 50 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. What is the distribution of ¯xx¯? ¯xx¯ ~ N(____, ______) For the group of 50, find the probability that the average price is between $162 and $167. _________ Find the third quartile for the average textbook price for this sample size. $ (round to the nearest cent)____________ For part b), is the assumption that the distribution is normal necessary? Yes/No

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