Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

please help!use JMP QUESTION 1 Does the plot of Residuals vs. Fitted Values indicate that the assumption of constant variance is valid? Explain your reasoning.

please help!use JMP

image text in transcribedimage text in transcribedimage text in transcribed
QUESTION 1 Does the plot of Residuals vs. Fitted Values indicate that the assumption of constant variance is valid? Explain your reasoning. (This might be somewhat subjective, pick the best answer) O a. There is a strong "cone shape" which indicates that the assumptions is not verified. O b. There is no pattern in the plot, so the assumption is verified. O c. There is a negative linear relationship which indicates that the assumption is verified O d. There is no pattern in the plot, so the assumption of constant variance is violated. QUESTION 2 Does the Normal Probability Plot indicate that the assumption of normality is valid? Explain your reasoning. (This might be somewhat subjective, pick the best answer) O a. The plot shows a random scatter of points, which indicates that the errors have a normal distribution. O b. The plot shows a strong curvature indicating that the errors do not follow a normal distribuiton. O c. The plot shows a perfect linear relationship and the errors clearly have a normal distribution. O d. The plot isn't very linear, but doesn't show any large or systematic violations, so while it's tough to say the errors follow a normal distribution we could probably be okay moving forward. QUESTION 3 Does the plot of Residuals vs. Fitted Values indicate that the assumption of E(=)=0? Explain your reasoning. (This might be somewhat subjective, pick the best answer) O There is a strong patter so the mean is not 0. The assumption is violated. O There is a linear patter so the mean is not 0. The assumption is verified. O The points are scattered around 0 so the mean is 0. The assumption is verified. O The points are scattered around 0 so the mean is not 0. The assumption is violated.JESTION 3 Does the plot of Residuals vs. Fitted Values indicate that the assumption of E()=0? Explain your reasoning. (This might be somewhat subjective, pick the best answer) O There is a strong patter so the mean is not 0. The assumption is violated. O There is a linear patter so the mean is not 0. The assumption is verified. O The points are scattered around 0 so the mean is 0. The assumption is verified. O The points are scattered around 0 so the mean is not 0. The assumption is violated. QUESTION 4 Determine if any higher order terms are needed in the model by creating the scatter plots of Y vs X1, Y vs X2, and Y vs. X3. What higher order terms, if any, are needed in the model? (This might be somewhat subjective, pick the best answer) O a. None of the variables need a higher order term, the relationships are perfectly linear. O b. It's possible that X1 and X3 could need higher order terms. Though the curvature is weak. O c. X2 show clear signs of needing a higher order term. O d. All three of the variables need higher order terms.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Business Statistics

Authors: Norean Sharpe, Richard Veaux, Paul Velleman

3rd Edition

978-0321944726, 321925831, 9780321944696, 321944720, 321944690, 978-0321925831

More Books

Students also viewed these Mathematics questions

Question

5 What does it mean to think of an organisation as an open system?

Answered: 1 week ago