Question #7 Listed below are amounts of court income and salaries paid to the town justices for a certain town. All amounts are in thousands of dollars. Find the (a) explained variation, (b) unexplained variation, and (c) indicated prediction interval. There is sufficient evidence to support a claim of a linear correlation, so it is reasonable to use the regression equation when making predictions. For the prediction interval, use a 99% confidence level with a court income of $800,000. Court Income $68 $409 $1599 $1125 $263 $252 $113 $155 $29 Justice Salary $33 $44 $92 $56 $40 $65 $21 $25 $20 a. Find the explained variation. ______________ (Round to three decimal places as needed.) b. Find the unexplained variation. _______________ (Round to three decimal places as needed.) c. Find the indicated prediction interval. $ _____________ < y < $ ____________ (Round to four decimal places as needed.)
Question #7
Listed below are amounts of court income and salaries paid to the town justices for a certain town. All amounts are in thousands of dollars. Find the (a) explained variation, (b) unexplained variation, and (c) indicated prediction interval. There is sufficient evidence to support a claim of a linear
|
Court Income
|
$68
|
$409
|
$1599
|
$1125
|
$263
|
$252
|
$113
|
$155
|
$29
|
|---|---|---|---|---|---|---|---|---|---|
|
Justice Salary
|
$33
|
$44
|
$92
|
$56
|
$40
|
$65
|
$21
|
$25
|
$20
|
a. Find the explained variation.
______________
(Round to three decimal places as needed.)
b. Find the unexplained variation.
_______________
(Round to three decimal places as needed.)
c. Find the indicated prediction interval.
$ _____________ < y < $ ____________
(Round to four decimal places as needed.)
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