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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![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](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7248d714-2630-4255-aa39-67ac8596a103%2F602b8b1a-7b6c-46f4-af80-96e40db43c8f%2F96uul9q_processed.png&w=3840&q=75)
Transcribed Image Text: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
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