Suppose two food preservatives are extensively tested and determined safe for use in meats. A processor wants to compare the preservatives for their effects on retarding spoilage. Suppose 16 cuts of fresh meat are treated with preservative A and another 12 cuts of meat are treated with preservative B. The number of hours until spoilage begins is recorded for each of the 28 cuts of meat. The results are summarized in the table below. Preservative A Preservative B 100.50 10.55 Sample means Sample standard deviation 95.25 13.45 The value of the test statistic for determining if there is a difference in the population variances for preservatives A and B is equal to: Select one: O a. 0.784 O b. 1.275 c. 1.129 d. 1.625 What assumptions are necessary for a comparison of the population variances to be valid? Select one: O a. The samples are correlated. b. One of the samples follows normal distribution and the other follows F distribution. O c. At least one of the population variances is known. O d. Both sampled populations are normally distributed. Select one: O a. 16 and 12 b. 15 and 11 O c. 11 and 15 O d. 12 and 16 The numerator and denominator degrees of freedom associated with the test statistic for determining if there is a difference in the population variances for preservatives A and B are, respectively:
Suppose two food preservatives are extensively tested and determined safe for use in meats. A processor wants to compare the preservatives for their effects on retarding spoilage. Suppose 16 cuts of fresh meat are treated with preservative A and another 12 cuts of meat are treated with preservative B. The number of hours until spoilage begins is recorded for each of the 28 cuts of meat. The results are summarized in the table below. Preservative A Preservative B 100.50 10.55 Sample means Sample standard deviation 95.25 13.45 The value of the test statistic for determining if there is a difference in the population variances for preservatives A and B is equal to: Select one: O a. 0.784 O b. 1.275 c. 1.129 d. 1.625 What assumptions are necessary for a comparison of the population variances to be valid? Select one: O a. The samples are correlated. b. One of the samples follows normal distribution and the other follows F distribution. O c. At least one of the population variances is known. O d. Both sampled populations are normally distributed. Select one: O a. 16 and 12 b. 15 and 11 O c. 11 and 15 O d. 12 and 16 The numerator and denominator degrees of freedom associated with the test statistic for determining if there is a difference in the population variances for preservatives A and B are, respectively:
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
![Subset 8- The next questions are based on the following information:
Suppose two food preservatives are extensively tested and determined safe for use in meats. A processor wants to compare the preservatives for their
effects on retarding spoilage. Suppose 16 cuts of fresh meat are treated with preservative A and another 12 cuts of meat are treated with preservative B.
The number of hours until spoilage begins is recorded for each of the 28 cuts of meat. The results are summarized in the table below.
Preservative A
Preservative B
95.25
100.50
13.45
Sample means
Sample standard deviation
The value of the test statistic for determining if there is a difference in the population variances for preservatives A and B is equal to:
Select one:
O a. 0.784
O b. 1.275
O c. 1.129
d. 1.625
What assumptions are necessary for a comparison of the population variances to be valid?
Select one:
a. The samples are correlated.
10.55
b. One of the samples follows normal distribution and the other follows F distribution.
c. At least one of the population variances is known.
d. Both sampled populations are normally distributed.
The numerator and denominator degrees of freedom associated with the test statistic for determining if there is a difference in the population variances
for preservatives A and B are, respectively:
Select one:
a. 16 and 12
b. 15 and 11
O c. 11 and 15
O d. 12 and 16](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb2d99d69-9bb7-4144-abd7-b3390f15cd0d%2F3c0ca49d-9df9-496c-b5ba-4c1b66a1c558%2Fj5dr4w_processed.png&w=3840&q=75)
Transcribed Image Text:Subset 8- The next questions are based on the following information:
Suppose two food preservatives are extensively tested and determined safe for use in meats. A processor wants to compare the preservatives for their
effects on retarding spoilage. Suppose 16 cuts of fresh meat are treated with preservative A and another 12 cuts of meat are treated with preservative B.
The number of hours until spoilage begins is recorded for each of the 28 cuts of meat. The results are summarized in the table below.
Preservative A
Preservative B
95.25
100.50
13.45
Sample means
Sample standard deviation
The value of the test statistic for determining if there is a difference in the population variances for preservatives A and B is equal to:
Select one:
O a. 0.784
O b. 1.275
O c. 1.129
d. 1.625
What assumptions are necessary for a comparison of the population variances to be valid?
Select one:
a. The samples are correlated.
10.55
b. One of the samples follows normal distribution and the other follows F distribution.
c. At least one of the population variances is known.
d. Both sampled populations are normally distributed.
The numerator and denominator degrees of freedom associated with the test statistic for determining if there is a difference in the population variances
for preservatives A and B are, respectively:
Select one:
a. 16 and 12
b. 15 and 11
O c. 11 and 15
O d. 12 and 16
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 2 steps with 1 images
![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