More Practice Problems: Regression
November 7, 2008 by kltangen
Filed under Practice Problems, Regression
Item 6
If there are 7 professors, how many classes will be taught:
Professors Classes
1 3
4 8
12 13
8 2
7 8
7 9
a =
b =
r =
see =
If X (professors) is 7, Y (classes) will be =
Item 7
If there are 150 candles, how many flowers will a wedding have:
Candles Flowers
22 2
8 4
6 9
3 11
12 4
1 6
16 19
a =
b =
How accurate is your prediction? (see) =
If X is 150 (candles), Y (flowers) will be =
Item 8
How much will tuition (in thousands) be in 1997:
Year Tuition
1990 1
1991 3
1992 9
1993 12
1994 16
a =
b =
[Hint: use the last digit of the year or convert Years to your own integers]
If X (year) is 7, Y (tuition) will be =
Day 6: Regression
Bit More About Regression
Even More About Regression
Calculate Regression
Practice Problems
More Practice Problems
Word Problems
Sim1 Sim2 Sim3
Sim4 Sim5 Sim6
Sim7 Sim8 Sim9
Basic Facts About Regression
Vocabulary
Formulas
Quiz 6
Summary
Practice Problems: Regression
November 4, 2008 by kltangen
Filed under Practice Problems, Regression
8 1
5 6
2 7
1 8
9 2
SSy = _____
SSxy = ____
a = _____
b = _____
12 11
8 7
6 5
2 1
4 3
9 9
14 15
b = _____
r = _____
standard error of estimate (SEE) = _____
1.0 3.9
2.5 3.7
3.3 1.4
4.0 1.0
2.3 2.9
b = _____
3 11
6 6
9 8
11 1
15 2
4 10
5 7
b = _____
r = _____
standard error of estimate (SEE) = _____
9 15
4 5
2 3
11 1
16 18
17 10
b = _____
see = _____
