In: Statistics and Probability
The following are advertised sale prices of color televisions at an electronics store.
| Size (inches) | Sale Price ($) | 
|---|---|
| 9 | 147 | 
| 20 | 187 | 
| 27 | 267 | 
| 31 | 447 | 
| 35 | 1177 | 
| 40 | 2177 | 
| 60 | 2497 | 
Calculate the least squares line. Put the equation in the form of:
ŷ = a + bx
Find the correlation coefficient r.
Find the estimated sale price for a 33-inch television. (Use
your equation from part (d). Round your answer to two decimal
places.)
$
Find the estimated sale price for a 47-inch television
What is the slope of the least squares (best-fit) line? (Round
your answer to three decimal places.)