The reading speed of second grade students in a large city is approximately normal, with a mean of 88 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (e) A teacher instituted a new reading program at school. After 10 weeks in the program, it was found that the mean reading speed of a random sample of 21 second grade students was 90.8 wpm. What might you conclude based on this result? Select the correct choice below and fill in the answer boxes within your choice. (Type integers or decimals rounded to four decimal places as needed.) O A. A mean reading rate of 90.8 wpm is unusual since the probability of obtaining a result of 90.8 wpm or more is . This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is 88 of every 100 random samples of size n=21 students. The new program is abundantly more effective than the old program. in O B. A mean reading rate of 90.8 wpm is not unusual since the probability of obtaining a result of 90.8 wpm or more is This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is 88 in of every 100 random samples of size n=21 students. The new program is not abundantly more effective than the old program.
The reading speed of second grade students in a large city is approximately normal, with a mean of 88 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f). Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (e) A teacher instituted a new reading program at school. After 10 weeks in the program, it was found that the mean reading speed of a random sample of 21 second grade students was 90.8 wpm. What might you conclude based on this result? Select the correct choice below and fill in the answer boxes within your choice. (Type integers or decimals rounded to four decimal places as needed.) O A. A mean reading rate of 90.8 wpm is unusual since the probability of obtaining a result of 90.8 wpm or more is . This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is 88 of every 100 random samples of size n=21 students. The new program is abundantly more effective than the old program. in O B. A mean reading rate of 90.8 wpm is not unusual since the probability of obtaining a result of 90.8 wpm or more is This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is 88 in of every 100 random samples of size n=21 students. The new program is not abundantly more effective than the old program.
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
![The reading speed of second grade students in a large city is approximately normal, with a mean of 88 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f).
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
.....
(e) A teacher instituted a new reading program at school. After 10 weeks in the program, it was found that the mean reading speed of a random sample of 21 second grade students was 90.8 wpm. What might you conclude based on this result?
ect the correct choice below and fill in the answer boxes within your choice.
(Type integers or decimals rounded to four decimal places as needed.)
O A. A mean reading rate of 90.8 wpm is unusual since the probability of obtaining a result of 90.8 wpm or more is
This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is 88
in
of
every
100 random samples of sizen=21 students. The new program is abundantly more effective than the old program.
B. A mean reading rate of 90.8 wpm is not unusual since the probability of obtaining a result of 90.8 wpm or more is
. This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is
88 in
of every 100 random samples of size n= 21 students. The new program is not abundantly more effective than the old program.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe55ca600-6ecd-431e-a2f3-7959f6a21e5c%2F9bb96d00-73d0-4b05-b777-8c720d54fa37%2F871erju_processed.png&w=3840&q=75)
Transcribed Image Text:The reading speed of second grade students in a large city is approximately normal, with a mean of 88 words per minute (wpm) and a standard deviation of 10 wpm. Complete parts (a) through (f).
Click here to view the standard normal distribution table (page 1).
Click here to view the standard normal distribution table (page 2).
.....
(e) A teacher instituted a new reading program at school. After 10 weeks in the program, it was found that the mean reading speed of a random sample of 21 second grade students was 90.8 wpm. What might you conclude based on this result?
ect the correct choice below and fill in the answer boxes within your choice.
(Type integers or decimals rounded to four decimal places as needed.)
O A. A mean reading rate of 90.8 wpm is unusual since the probability of obtaining a result of 90.8 wpm or more is
This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is 88
in
of
every
100 random samples of sizen=21 students. The new program is abundantly more effective than the old program.
B. A mean reading rate of 90.8 wpm is not unusual since the probability of obtaining a result of 90.8 wpm or more is
. This means that we would expect a mean reading rate of 90.8 or higher from a population whose mean reading rate is
88 in
of every 100 random samples of size n= 21 students. The new program is not abundantly more effective than the old program.
![Standard Normal Distribution Table (page 1)
Standard Normal Distribution Table (page 2)
Area
Area
Standard Normal Distribution
Standard Normal Distribution
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.0003
0.0005
0.0007
0.0003
0.0005
0.0007
0.0003
0.0005
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0005
0.0003
0.0004
0.0005
0.0007
0.0010
0.0002
0.0003
0.0005
0.0007
0.0010
0.5040
0.5438
0.5832
0.6217
0.6591
0.5080
0.5478
0.5871
0.6255
0.6628
0.5120
0.5517
0.5910
0.6293
0.6664
0.5199
0.5596
0.5987
0.6368
0.6736
0.5279
0.5675
0.6064
0.6443
0.6808
0.5319
0.5714
0.6103
0.5160
0.5557
0.5239
0.5636
0.6026
0.5359
0.5753
0.6141
-3.4
0.5000
0.5398
0.5793
0.0
-3.3
-3.2
0.1
0,2
0.5948
-3.1
-3.0
0.0010
0.0013
0.0009
0.0013
0.0009
0.0013
0.0009
0.0012
0.0008
0.0012
0.0008
0.0011
0.3
0.4
0.6179
0.6554
0.6480
0.6844
0.6517
0.6879
0.0008
0.0008
0.0011
0.6331
0.6406
0.6772
0.0011
0.6700
0.0019
0.0026
0.0014
0.0020
0.6985
0.7324
0.7123
0.7454
0.7157
0.7486
0.7190
0.7517
0.0015
0.0014
0.0019
0.6915
0.7257
0.6950
0.7054
0.7389
-29
0.0018
0.0018
0.0017
0.0016
0.0023
0.0016
0.0022
0.0015
0.5
0.6
0.7019
0.7088
0.7224
-28
0.0025
0.0024
0.0023
0.0021
0.0021
0.7291
0.7357
0.7422
0.7549](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe55ca600-6ecd-431e-a2f3-7959f6a21e5c%2F9bb96d00-73d0-4b05-b777-8c720d54fa37%2Fgvvz1ff_processed.png&w=3840&q=75)
Transcribed Image Text:Standard Normal Distribution Table (page 1)
Standard Normal Distribution Table (page 2)
Area
Area
Standard Normal Distribution
Standard Normal Distribution
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.00
0.01
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
0.0003
0.0005
0.0007
0.0003
0.0005
0.0007
0.0003
0.0005
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0006
0.0003
0.0004
0.0005
0.0003
0.0004
0.0005
0.0007
0.0010
0.0002
0.0003
0.0005
0.0007
0.0010
0.5040
0.5438
0.5832
0.6217
0.6591
0.5080
0.5478
0.5871
0.6255
0.6628
0.5120
0.5517
0.5910
0.6293
0.6664
0.5199
0.5596
0.5987
0.6368
0.6736
0.5279
0.5675
0.6064
0.6443
0.6808
0.5319
0.5714
0.6103
0.5160
0.5557
0.5239
0.5636
0.6026
0.5359
0.5753
0.6141
-3.4
0.5000
0.5398
0.5793
0.0
-3.3
-3.2
0.1
0,2
0.5948
-3.1
-3.0
0.0010
0.0013
0.0009
0.0013
0.0009
0.0013
0.0009
0.0012
0.0008
0.0012
0.0008
0.0011
0.3
0.4
0.6179
0.6554
0.6480
0.6844
0.6517
0.6879
0.0008
0.0008
0.0011
0.6331
0.6406
0.6772
0.0011
0.6700
0.0019
0.0026
0.0014
0.0020
0.6985
0.7324
0.7123
0.7454
0.7157
0.7486
0.7190
0.7517
0.0015
0.0014
0.0019
0.6915
0.7257
0.6950
0.7054
0.7389
-29
0.0018
0.0018
0.0017
0.0016
0.0023
0.0016
0.0022
0.0015
0.5
0.6
0.7019
0.7088
0.7224
-28
0.0025
0.0024
0.0023
0.0021
0.0021
0.7291
0.7357
0.7422
0.7549
Expert Solution
![](/static/compass_v2/shared-icons/check-mark.png)
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
Recommended textbooks for you
![MATLAB: An Introduction with Applications](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
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](https://www.bartleby.com/isbn_cover_images/9781119256830/9781119256830_smallCoverImage.gif)
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
![Probability and Statistics for Engineering and th…](https://www.bartleby.com/isbn_cover_images/9781305251809/9781305251809_smallCoverImage.gif)
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
![Statistics for The Behavioral Sciences (MindTap C…](https://www.bartleby.com/isbn_cover_images/9781305504912/9781305504912_smallCoverImage.gif)
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…](https://www.bartleby.com/isbn_cover_images/9780134683416/9780134683416_smallCoverImage.gif)
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
![The Basic Practice of Statistics](https://www.bartleby.com/isbn_cover_images/9781319042578/9781319042578_smallCoverImage.gif)
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](https://www.bartleby.com/isbn_cover_images/9781319013387/9781319013387_smallCoverImage.gif)
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman