19. A sample of final exam scores is normally dis- tributed with a mean equal to 20 and a vari- ance equal to 25. (a) What percentage of scores is between 15 and 25? [b] What raw score is the cutoff for the top 10% of scores? (c) What is the probability of a score less than 27? (d) What is the proportion below 13? 24 25
19. A sample of final exam scores is normally dis- tributed with a mean equal to 20 and a vari- ance equal to 25. (a) What percentage of scores is between 15 and 25? [b] What raw score is the cutoff for the top 10% of scores? (c) What is the probability of a score less than 27? (d) What is the proportion below 13? 24 25
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Need help with #19 B-D
![distributed with a mean
standard deviation equal to 0.02 second. What
percentage of players on the team run the 100-
meter dash in 0.14 seconds or faster li.e., in
less time)?
18. State the z score that is the cutoff for each of
the following:
(a)
The top 5% of scores
(b)
The bottom 2.5% of scores
(c)
The top 69.5% of scores
[d] The top 50% of scores
fel
The bottom 50% of scores
19. A sample of final exam scores is normally dis-
tributed with a mean equal to 20 and a vari-
ance equal to 25.
(a) What percentage of scores is between 15
and 25?
[b]
(c)
What raw score is the cutoff for the top
10% of scores?
What is the probability of a score less than
27?
(d) What is the proportion below 13?
20. A college administrator states that the aver-
age high school GPA for incoming freshman
students is normally distributed with a mean
(al
belo
(b) The
bety
(c) The
the
(d)
The
lel The
bet
23. A norm
What is
distribu
curve t
24. A norm
10. Wh
mal di
X = 12.
25. A norm
equal
distrib
X=10
26. A nor
equal
distri
x=20](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2852a454-dfd6-4385-b4ea-f20f2cf22fbc%2F97fb8253-7b3d-4de4-9bd8-44e898826694%2Falsk2on_processed.jpeg&w=3840&q=75)
Transcribed Image Text:distributed with a mean
standard deviation equal to 0.02 second. What
percentage of players on the team run the 100-
meter dash in 0.14 seconds or faster li.e., in
less time)?
18. State the z score that is the cutoff for each of
the following:
(a)
The top 5% of scores
(b)
The bottom 2.5% of scores
(c)
The top 69.5% of scores
[d] The top 50% of scores
fel
The bottom 50% of scores
19. A sample of final exam scores is normally dis-
tributed with a mean equal to 20 and a vari-
ance equal to 25.
(a) What percentage of scores is between 15
and 25?
[b]
(c)
What raw score is the cutoff for the top
10% of scores?
What is the probability of a score less than
27?
(d) What is the proportion below 13?
20. A college administrator states that the aver-
age high school GPA for incoming freshman
students is normally distributed with a mean
(al
belo
(b) The
bety
(c) The
the
(d)
The
lel The
bet
23. A norm
What is
distribu
curve t
24. A norm
10. Wh
mal di
X = 12.
25. A norm
equal
distrib
X=10
26. A nor
equal
distri
x=20
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