The average price of a college math textbook is $160 and the standard deviation is $27. Suppose that 46 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of ? - N( b. For the group of 46, find the probability that the average price is between $161 and $165. c. Find the first quartile for the average textbook price for this sample size. nearest cent) d. For part b), is the assumption that the distribution is normal necessary? O No Yes (round to the
The average price of a college math textbook is $160 and the standard deviation is $27. Suppose that 46 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of ? - N( b. For the group of 46, find the probability that the average price is between $161 and $165. c. Find the first quartile for the average textbook price for this sample size. nearest cent) d. For part b), is the assumption that the distribution is normal necessary? O No Yes (round to the
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 11PPS
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