Author Question: A study was recently performed by the Internal Revenue Service to determine how much tip income ... (Read 124 times)

bobbysung · **on:** Jun 24, 2018

A study was recently performed by the Internal Revenue Service to determine how much tip income waiters and waitresses should make based on the size of the bill at each table. A random sample of bills and resulting tips were collected.

These data are shown as follows:

Total Bill Tip
126 19
58 11
86 20
20 3
59 14
120 30
14 2
17 4
26 2
74 16

Based upon these data, what is the approximate predicted value for tips if the total bill is 100?
A) 15.55
B) 20.61
C) 26.03
D) 12.88

Question 2

The following model:y = 0 + 1x1 + 2x2 + 3x1x2 +

A) is a linear model with interaction.
B) is a second order polynomial model.
C) is a composite model.
D) is a convex model.