Question
The following data show the brand, price , and the overall score for six stereo headphones that were tested by Consumer Reports ( Consumer Reports
The following data show the brand, price , and the overall score for six stereo headphones that were tested by Consumer Reports (Consumer Reports website). The overall score is based on sound quality and effectiveness of ambient noise reduction. Scores range from (lowest) to (highest). The estimated regression equation for these data is , where and .
| Brand | Price ($) | Score | |
| Bose | 180 | 76 | |
| Scullcandy | 160 | 71 | |
| Koss | 95 | 62 | |
| Phillips/O'Neill | 70 | 56 | |
| Denon | 70 | 40 | |
| JVC | 25 | 25 |
a. Compute , , and (to decimals).
| SST = | |
| SSR = | |
| SSE = |
b. Compute the coefficient of determination (to decimals).
Comment on the goodness of fit. Hint: If is greater than , the estimated regression equation provides a good fit.
The least squares line - Select your answer - provided did not provide Item 5 a good fit as - Select your answer - a large a small Item 6 proportion of the variability in has been explained by the least squares line.
c. What is the value of the sample correlation coefficient (to decimals)?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access with AI-Powered Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
Modern Advanced Accounting In Canada
Authors: Hilton Murray, Herauf Darrell
7th Edition
1259066487, 978-1259066481
