What is the probability that a random sample of 20 takers would have a mean greater than 153? a 953 b. 865 C. 047 d. 075 e 42
What is the probability that a random sample of 20 takers would have a mean greater than 153? a 953 b. 865 C. 047 d. 075 e 42
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
please answer number 24

Transcribed Image Text:The scores on the North Carolina Bar Exam are normally distributed with a mean of 150 and a standard
deviation of 8. Recall that the Central Limit Theorem allows us to test sampling means as they are normally
distributed. Recall also that z, =
and o, "
22. IfI were to randomly sample 8 students, what is the probability that the sample's average score would
be between 153 and 159?
a .144
b. 235
e. .109
d. 325
e. .031
23. What is the probability that a random sample of 15 students would have a mean less than 1447
a 385
b. 002
c. 011
d. 983
e. .092
24. What is the probability that a random sample of 20 takers would have a mean greater than 153?
a. 953
b. 865
c. .047
d. .075
e. 842
25. A group of 5 test takers gather together. It would be unusual to see their average soore below what
value?
a. 151.3
b. 162.5
c. 145.3
d. 150.0
e. 142.8
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Recommended textbooks for you

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

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
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON

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
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman