The average price of a college math textbook is $162 and the standard deviation is $27. Suppose that 10 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of ? ~ N( ✓8.5382✓ OB OB 162 b. For the group of 10, find the probability that the average price is between $161 and $167. 0.2675 OF c. Find the 95th percentile for the average textbook price for this sample size. $ 1.645 x (round to the nearest cent) d. Find the 95th percentile for an individual textbook price. (round to the nearest cent) $ 175.05 X e. For part b), is the assumption that the distribution is normal necessary? Yes No
The average price of a college math textbook is $162 and the standard deviation is $27. Suppose that 10 textbooks are randomly chosen. Round all answers to 4 decimal places where possible. a. What is the distribution of ? ~ N( ✓8.5382✓ OB OB 162 b. For the group of 10, find the probability that the average price is between $161 and $167. 0.2675 OF c. Find the 95th percentile for the average textbook price for this sample size. $ 1.645 x (round to the nearest cent) d. Find the 95th percentile for an individual textbook price. (round to the nearest cent) $ 175.05 X e. For part b), is the assumption that the distribution is normal necessary? Yes No
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 22PFA
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