A statistical program is recommended. Consider the following data for two variables, x and y. x 22 24 26 30 35 40 Y 13 22 33 34 41 35 (a) Develop an estimated regression equation for the data of the form ý = b, + b,x. (Round b, to one decimal place and b, to three decimal places.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
A statistical program is recommended.
Consider the following data for two variables, x and y.
24 26 30
22
35
40
y
13
22
33
34
41
35
(a) Develop an estimated regression equation for the data of the form ŷ = b, + b,x. (Round b, to one decimal place and b, to three decimal places.)
(b) Use the results from part (a) to test for a significant relationship between x and y. Use a = 0.05.
Find the value of the test statistic. (Round your answer to two decimal places.)
F =
Find the p-value. (Round your answer to three decimal places.)
p-value =
Is the relationship between x and y significant?
O Yes, the relationship is significant.
O No, the relationship is not significant.
(c) Develop a scatter diagram for the data.
y
45
y
45
y
45
y
45 T
40
40-
40
40
35
35-
35
35
30
30
30
30
25
25
25
25
20
20
20
20
15
15
15
15
10
10
10
10
5.
5.
5.
5
20
25
30
35
40
45
20
25
30
35
40
45
20
25
30
35
40
45
20
25
30
35
40
45
Does the scatter diagram suggest an estimated regression equation of the form ý = b, + b,x + b,x? Explain.
O No, the scatter diagram suggests that a linear relationship may be appropriate.
O Yes, the scatter diagram suggests that a curvilinear relationship may be appropriate.
O Yes the scatter diagram suggests that a linear relationshin may be appropriate
Transcribed Image Text:A statistical program is recommended. Consider the following data for two variables, x and y. 24 26 30 22 35 40 y 13 22 33 34 41 35 (a) Develop an estimated regression equation for the data of the form ŷ = b, + b,x. (Round b, to one decimal place and b, to three decimal places.) (b) Use the results from part (a) to test for a significant relationship between x and y. Use a = 0.05. Find the value of the test statistic. (Round your answer to two decimal places.) F = Find the p-value. (Round your answer to three decimal places.) p-value = Is the relationship between x and y significant? O Yes, the relationship is significant. O No, the relationship is not significant. (c) Develop a scatter diagram for the data. y 45 y 45 y 45 y 45 T 40 40- 40 40 35 35- 35 35 30 30 30 30 25 25 25 25 20 20 20 20 15 15 15 15 10 10 10 10 5. 5. 5. 5 20 25 30 35 40 45 20 25 30 35 40 45 20 25 30 35 40 45 20 25 30 35 40 45 Does the scatter diagram suggest an estimated regression equation of the form ý = b, + b,x + b,x? Explain. O No, the scatter diagram suggests that a linear relationship may be appropriate. O Yes, the scatter diagram suggests that a curvilinear relationship may be appropriate. O Yes the scatter diagram suggests that a linear relationshin may be appropriate
Does the scatter diagram suggest an estimated regression equation of the form ý = b, + b,x + b,x?? Explain.
O No, the scatter diagram suggests that a linear relationship may be appropriate.
O Yes, the scatter diagram suggests that a curvilinear relationship may be appropriate.
O Yes, the scatter diagram suggests that a linear relationship may be appropriate.
O No, the scatter diagram suggests that a curvilinear relationship may be appropriate.
(d) Develop an estimated regression equation for the data of the form ŷ = b, + b,x + b,x². (Round b, to one decimal place and b, to two decimal places and b, to four decimal places.)
(e) Use the results from part (d) to test for a significant relationship between x, x², and y. Use a = 0.05. Is the relationship between x, x², and y significant?
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to three decimal places.)
p-value =
Is the relationship between x, x², and y significant?
O Yes, the relationship is significant.
O No, the relationship is not significant.
(f) Use the model from part (d) to predict the value of y when x = 25. (Round your answer to three decimal places.)
Transcribed Image Text:Does the scatter diagram suggest an estimated regression equation of the form ý = b, + b,x + b,x?? Explain. O No, the scatter diagram suggests that a linear relationship may be appropriate. O Yes, the scatter diagram suggests that a curvilinear relationship may be appropriate. O Yes, the scatter diagram suggests that a linear relationship may be appropriate. O No, the scatter diagram suggests that a curvilinear relationship may be appropriate. (d) Develop an estimated regression equation for the data of the form ŷ = b, + b,x + b,x². (Round b, to one decimal place and b, to two decimal places and b, to four decimal places.) (e) Use the results from part (d) to test for a significant relationship between x, x², and y. Use a = 0.05. Is the relationship between x, x², and y significant? Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to three decimal places.) p-value = Is the relationship between x, x², and y significant? O Yes, the relationship is significant. O No, the relationship is not significant. (f) Use the model from part (d) to predict the value of y when x = 25. (Round your answer to three decimal places.)
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 4 images

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
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