memoi meal. people were given memory ests bef their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability. Score on the Memory Test a Meal 46 63 75 77 68 75 50 72 71 61 After | 49 62 66 84 68 80 64 76 73 68 Assume a Normal distribution. What can be concluded at the the a = 0.05 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be:
memoi meal. people were given memory ests bef their meal and then again after their meal. The data is shown below. A higher score indicates a better memory ability. Score on the Memory Test a Meal 46 63 75 77 68 75 50 72 71 61 After | 49 62 66 84 68 80 64 76 73 68 Assume a Normal distribution. What can be concluded at the the a = 0.05 level of significance? For this study, we should use Select an answer a. The null and alternative hypotheses would be:
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
Topic Video
Question
![Is memory ability before a meal worse than after a meal? Ten people were given memory tests before
their meal and then again after their meal. The data is shown below. A higher score indicates a better
memory ability.
Score on the Memory Test
Before
46 63 75 77 68 75 50 72 71 61
After
49 62 66 84 68 80 64 76 73 68
а Мeal
Assume a Normal distribution. What can be concluded at the the a =
0.05 level of significance?
For this study, we should use Select an answer
a. The null and alternative hypotheses would be:
Ho: Select an answer v
Select an answer ♥
Select an answer
(please enter a decimal)
H: Select an answer v
Select an answer v Select an answer v (Please enter a decimal)
b. The test statistic ? v
(please show your answer to 3 decimal places.)
c. The p-value =
(Please show your answer to 4 decimal places.)
d. The p-value is ? va
e. Based on this, we should Select an answer v the null hypothesis.
f. Thus, the final conclusion is that ...
O The results are statistically insignificant at a =
evidence to conclude that the population mean memory score before a meal is equal to the
population mean memory score after a meal.
0.05, so there is statistically significant
The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude
that the ten memory scores from the memory tests that were taken before a meal are lower
on average than the ten memory scores from the memory tests that were taken after a meal.
%3D
O The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude
that the population mean memory score before a meal is lower than the population mean
memory score after a meal
%3D
O The results are statistically insignificant at a = 0.05, so there is insufficient evidence to
conclude that the population mean memory score before a meal is lower than the population
mean memory score after a meal.
g. Interpret the p-value in the context of the study.
O If the population mean memory score before a meal is the same as the population mean](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0f2f31bb-76ab-4f91-8a74-15b6633e1417%2F0a8c8b0c-fcea-4d54-9292-842b9b89133a%2Ft9fmdj_processed.png&w=3840&q=75)
Transcribed Image Text:Is memory ability before a meal worse than after a meal? Ten people were given memory tests before
their meal and then again after their meal. The data is shown below. A higher score indicates a better
memory ability.
Score on the Memory Test
Before
46 63 75 77 68 75 50 72 71 61
After
49 62 66 84 68 80 64 76 73 68
а Мeal
Assume a Normal distribution. What can be concluded at the the a =
0.05 level of significance?
For this study, we should use Select an answer
a. The null and alternative hypotheses would be:
Ho: Select an answer v
Select an answer ♥
Select an answer
(please enter a decimal)
H: Select an answer v
Select an answer v Select an answer v (Please enter a decimal)
b. The test statistic ? v
(please show your answer to 3 decimal places.)
c. The p-value =
(Please show your answer to 4 decimal places.)
d. The p-value is ? va
e. Based on this, we should Select an answer v the null hypothesis.
f. Thus, the final conclusion is that ...
O The results are statistically insignificant at a =
evidence to conclude that the population mean memory score before a meal is equal to the
population mean memory score after a meal.
0.05, so there is statistically significant
The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude
that the ten memory scores from the memory tests that were taken before a meal are lower
on average than the ten memory scores from the memory tests that were taken after a meal.
%3D
O The results are statistically significant at a = 0.05, so there is sufficient evidence to conclude
that the population mean memory score before a meal is lower than the population mean
memory score after a meal
%3D
O The results are statistically insignificant at a = 0.05, so there is insufficient evidence to
conclude that the population mean memory score before a meal is lower than the population
mean memory score after a meal.
g. Interpret the p-value in the context of the study.
O If the population mean memory score before a meal is the same as the population mean
![g. Interpret the p-value in the context of the study.
O If the population mean memory score before a meal is the same as the population mean
memory score after a meal and if another 10 people are given a memory test before and after
a meal then there would be a 6.39% chance that the mean memory score for the 10 people
who took the test before a meal would be at least 3.2 points lower than the mean memory
score for the 10 people who took the test after a meal.
O If the sample mean memory score for the 10 people who took the test before a meal is the
same as the sample mean memory score for the 10 people who took the test after a meal and
if another 10 people are given a memory test before and after a meal then there would be a
6.39% chance of concluding that the mean memory score for the 10 people who took the test
before a meal is at least 3.2 points lower than the mean memory score for the 10 people who
took the test after a meal.
There is a 6.39% chance of a Type I error.
O There is a 6.39% chance that the mean memory score for the 10 people who took the test
before a meal is at least 3.2 points lower than the mean memory score for the 10 people who
took the test after a meal.
h. Interpret the level of significance in the context of the study.
O If the population mean memory score before a meal is the same as the population mean
memory score after a meal and if another 10 people are given a memory test before and after
a meal, then there would be a 5% chance that we would end up falsely concuding that the
sample mean memory scores before and after a meal for these 10 people who were part of the
study differ from each other.
O There is a 5% chance that the population mean memory score is the same before and after a
meal.
O If the population mean memory score before a meal is the same as the population mean
memory score after a meal and if another 10 people are given a memory test before and after
a meal, then there would be a 5% chance that we would end up falsely concuding that the
population mean memory score before a meal is lower than the population mean memory score
after a meal
There is a 5% chance that your memory is so bad that you have already forgotten what this
chapter is about.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0f2f31bb-76ab-4f91-8a74-15b6633e1417%2F0a8c8b0c-fcea-4d54-9292-842b9b89133a%2Fa3fbyk0o_processed.png&w=3840&q=75)
Transcribed Image Text:g. Interpret the p-value in the context of the study.
O If the population mean memory score before a meal is the same as the population mean
memory score after a meal and if another 10 people are given a memory test before and after
a meal then there would be a 6.39% chance that the mean memory score for the 10 people
who took the test before a meal would be at least 3.2 points lower than the mean memory
score for the 10 people who took the test after a meal.
O If the sample mean memory score for the 10 people who took the test before a meal is the
same as the sample mean memory score for the 10 people who took the test after a meal and
if another 10 people are given a memory test before and after a meal then there would be a
6.39% chance of concluding that the mean memory score for the 10 people who took the test
before a meal is at least 3.2 points lower than the mean memory score for the 10 people who
took the test after a meal.
There is a 6.39% chance of a Type I error.
O There is a 6.39% chance that the mean memory score for the 10 people who took the test
before a meal is at least 3.2 points lower than the mean memory score for the 10 people who
took the test after a meal.
h. Interpret the level of significance in the context of the study.
O If the population mean memory score before a meal is the same as the population mean
memory score after a meal and if another 10 people are given a memory test before and after
a meal, then there would be a 5% chance that we would end up falsely concuding that the
sample mean memory scores before and after a meal for these 10 people who were part of the
study differ from each other.
O There is a 5% chance that the population mean memory score is the same before and after a
meal.
O If the population mean memory score before a meal is the same as the population mean
memory score after a meal and if another 10 people are given a memory test before and after
a meal, then there would be a 5% chance that we would end up falsely concuding that the
population mean memory score before a meal is lower than the population mean memory score
after a meal
There is a 5% chance that your memory is so bad that you have already forgotten what this
chapter is about.
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.
Step by step
Solved in 3 steps with 3 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
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](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