Store
Monthly Profit
Monthly Advertising expenditure
A1
$13,593.02
$1,710.00
A2
$23,896.73
$1,983.00
A3
$9,932.64
$952.00
A4
$9,100.41
$1,009.00
A5
$15,220.08
$2,315.00
A6
$33,900.67
$2,197.00
A7
$6,935.36
$934.00
A8
$10,112.62
$2,375.00
A9
$9,155.14
$1,065.00
A10
$8,513.94
$812.00
A11
$7,933.25
$1,052.00
A12
$11,388.13
$2,234.00
A13
$26,299.72
$2,962.00
A14
$21,423.87
$1,699.00
A15
$21,430.21
$1,991.00
A16
$19,984.96
$2,181.00
A17
$11,575.09
$1,831.00
A18
$18,900.44
$1,819.00
A19
$21,815.24
$2,394.00
A20
$35,642.73
$2,296.00
If Crusty’s is considering spending $1750 on advertising what
is the 95% prediction interval...