A teacher says that the top 20% of the class received an A on the last test. The scores were normaly distributed with mean 70 and standard deviation 19. Find the minimum score required to get an A. Opoints Round to the whole number

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
icon
Concept explainers
Question
A teacher says that the top 20% of the class received an A on the last test. The scores were normally distributed with mean 70 and standard deviation 19.
Find the minimum score required to get an A
O points Round to the whole number
NEGATIVE z Scores
Standard Normal (z) Distribution Cumulative Area from the LEFT
and lower
e00001 traas below
44
0000
000
000
0003
33
0005
0004
0004
0004
0004
0004
0004
32
0007
.000
0000
2000
000
.0010
0000
000
0013
0013
0013
0012
0012
0011
0011
0010
0010
0010
.0018
0017
0010
0015
0014
014
0024
0023
002
0022
0021
0021
0020
27
.0034
0032
001
000
0027
00
003
0044
0040
.00
0037
0043
0057
20
0047
0045
0041
004
0012
004
25
-24
.0075
00t
D107
0132
0129
012
0122
0110
DI
0113
-22
Transcribed Image Text:A teacher says that the top 20% of the class received an A on the last test. The scores were normally distributed with mean 70 and standard deviation 19. Find the minimum score required to get an A O points Round to the whole number NEGATIVE z Scores Standard Normal (z) Distribution Cumulative Area from the LEFT and lower e00001 traas below 44 0000 000 000 0003 33 0005 0004 0004 0004 0004 0004 0004 32 0007 .000 0000 2000 000 .0010 0000 000 0013 0013 0013 0012 0012 0011 0011 0010 0010 0010 .0018 0017 0010 0015 0014 014 0024 0023 002 0022 0021 0021 0020 27 .0034 0032 001 000 0027 00 003 0044 0040 .00 0037 0043 0057 20 0047 0045 0041 004 0012 004 25 -24 .0075 00t D107 0132 0129 012 0122 0110 DI 0113 -22
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Knowledge Booster
Conditional Probability, Decision Trees, and Bayes' Theorem
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
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