The following are advertised sale prices of color televisions at Anderson’s ...
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The following are advertised sale prices of color televisions at Anderson’s
| Size (inches) | Sale Price ($) |
| 9 | 147 |
| 20 | 197 |
| 27 | 297 |
| 31 | 447 |
| 35 | 1177 |
| 40 | 2177 |
| 60 | 2497 |
(a) Decide which variable should be the independent variable and whichshould be the dependent variable.(b) Draw a scatter plot of the data.(c) Does it appear from inspection that there is a relationship betweenthe variables? Why or why not?(d) Calculate the least-squares line. Put the equation in the form of:y^ = a + bx(e) Find the correlation coefficient. Is it significant?(f) Find the estimated sale price for a 32 inch television. Find the costfor a 50 inch television.(g) Does it appear that a line is the best way to fit the data? Why orwhy not?
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