Homework Help is Here – Start Your Trial Now!
Math
Statistics
A paint company has large outlet stores in two cities. Ten samples of the weekly sales (in tons) for the two cities are as follows. X10 = 148.5, Y 10 = 144.2, City A: n = 10, Sj = 4.3, City B: n = 10, S2 = 3.8. Obtain a 98 percent confidence interval for the ratio of the two population standard deviations. Justify any assumption that you may be making. The following `answers" have been proposed. (a) The confidence interval for is [0.296, 5.54]. No further assumptions are needed. (b) The confidence interval for 4 is [0.296, 5.54]. We assumed that the weekly sales are normally distributed. (c) The confidence interval for A is [0.24, 6.85]. We assumed that the weekly sales are normally distributed. (d) The confidence interval for 4 is [0.24, 6.85]. We assumed that the weekly sales are normally distributed and the means of the two populations are equal. e) None of the above. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)

A paint company has large outlet stores in two cities. Ten samples of the weekly sales (in tons) for the two cities are as follows. X10 = 148.5, Y 10 = 144.2, City A: n = 10, Sj = 4.3, City B: n = 10, S2 = 3.8. Obtain a 98 percent confidence interval for the ratio of the two population standard deviations. Justify any assumption that you may be making. The following `answers" have been proposed. (a) The confidence interval for is [0.296, 5.54]. No further assumptions are needed. (b) The confidence interval for 4 is [0.296, 5.54]. We assumed that the weekly sales are normally distributed. (c) The confidence interval for A is [0.24, 6.85]. We assumed that the weekly sales are normally distributed. (d) The confidence interval for 4 is [0.24, 6.85]. We assumed that the weekly sales are normally distributed and the means of the two populations are equal. e) None of the above. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
See similar textbooks
icon
Related questions
Question
100%
A paint company has large outlet stores in two cities. Ten samples of the weekly sales (in tons) for the two cities are as follows. S1 = 4.3, S2 City A: n = 10, X10 = 148.5, %3D City B: n = 10, Y 10 = 144.2, = 3.8. Obtain a 98 percent confidence interval for the ratio of the two population standard deviations. Justify any assumption that you may be making. The following `answers" have been proposed. (a) The confidence interval for is [0.296, 5.54). No further assumptions are needed. (b) The confidence interval for is [0.296, 5.54]. We assumed that the weekly sales are normally distributed. (c) The confidence interval for is [0.24, 6.85]. We assumed that the weekly sales are normally distributed. (d) The confidence interval for is [0.24, 6.85]. We assumed that the weekly sales are normally distributed and the means of the two populations are equal. (e) None of the above. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)
Transcribed Image Text:A paint company has large outlet stores in two cities. Ten samples of the weekly sales (in tons) for the two cities are as follows. S1 = 4.3, S2 City A: n = 10, X10 = 148.5, %3D City B: n = 10, Y 10 = 144.2, = 3.8. Obtain a 98 percent confidence interval for the ratio of the two population standard deviations. Justify any assumption that you may be making. The following `answers" have been proposed. (a) The confidence interval for is [0.296, 5.54). No further assumptions are needed. (b) The confidence interval for is [0.296, 5.54]. We assumed that the weekly sales are normally distributed. (c) The confidence interval for is [0.24, 6.85]. We assumed that the weekly sales are normally distributed. (d) The confidence interval for is [0.24, 6.85]. We assumed that the weekly sales are normally distributed and the means of the two populations are equal. (e) None of the above. The correct answer is (a) (b) (c) (d) (e) N/A (Select One)
Expert Solution
steps

Step by step

Solved in 2 steps with 2 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
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
SEE MORE TEXTBOOKS