The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a standard deviation of 5 ounces. 13 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. a. What is the distribution of X? X - N b. What is the distribution of ? - NO c. What is the probability that one randomly selected person drinks between 16.5 and 17.5 ounces of coffee per day?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
#17
Question 17
▼
<
The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a
standard deviation of 5 ounces. 13 randomly selected people are surveyed. Round all answers to 4 decimal
places where possible.
Check Answer
a. What is the distribution of X? X - N(
b. What is the distribution of ? - NO
c. What is the probability that one randomly selected person drinks between 16.5 and 17.5 ounces of
coffee per day?
d. For the 13 people, find the probability that the average coffee consumption is between 16.5 and 17.5
ounces of coffee per day.
e. For part d), is the assumption that the distribution is normal necessary? O Yes No
f. Find the IQR for the average of 13 coffee drinkers.
Q1 =
ounces
Q3 =
IQR:
ounces
ounces
Transcribed Image Text:Question 17 ▼ < The amount of coffee that people drink per day is normally distributed with a mean of 17 ounces and a standard deviation of 5 ounces. 13 randomly selected people are surveyed. Round all answers to 4 decimal places where possible. Check Answer a. What is the distribution of X? X - N( b. What is the distribution of ? - NO c. What is the probability that one randomly selected person drinks between 16.5 and 17.5 ounces of coffee per day? d. For the 13 people, find the probability that the average coffee consumption is between 16.5 and 17.5 ounces of coffee per day. e. For part d), is the assumption that the distribution is normal necessary? O Yes No f. Find the IQR for the average of 13 coffee drinkers. Q1 = ounces Q3 = IQR: ounces ounces
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman