Scores on a statistics final in a large class were normally distributed with a mean of 75 and a standard deviation of 5. Fin the following probabilities, round to the fourth. a) What is the probability 10 randomly chosen scores had an average greater than 76 Would it be unusual or usual for this to happen? Select an answer b) What is the probability 6 randomly chosen scores had an average less than 69 Would it be unusual or usual for this to happen? Select an answer Submit Question

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
Scores on a statistics final in a large class were normally
distributed with a mean of 75 and a standard deviation of 5. Fin
the following probabilities, round to the fourth.
a) What is the probability 10 randomly chosen scores had an
average greater than 76
Would it be unusual or usual for this to happen?
Select an answer
b) What is the probability 6 randomly chosen scores had an
average less than 69
Would it be unusual or usual for this to happen?
Select an answer
Submit Question
Transcribed Image Text:Scores on a statistics final in a large class were normally distributed with a mean of 75 and a standard deviation of 5. Fin the following probabilities, round to the fourth. a) What is the probability 10 randomly chosen scores had an average greater than 76 Would it be unusual or usual for this to happen? Select an answer b) What is the probability 6 randomly chosen scores had an average less than 69 Would it be unusual or usual for this to happen? Select an answer Submit Question
Expert Solution
steps

Step by step

Solved in 3 steps with 5 images

Blurred answer
Similar questions
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