Physics 270

y(x) Data Set #1

t (s) y (cm)

1 1.3

2 3.5

3 4.2

4 5.0

5 7.0

6 8.8

7 10.1

8 12.5

9 13.0

10 15.6

What about error bars?

Data Set #2

t (s) y (cm)

1 0.8

2 3.0

3 3.5

4 4.2

5 5.1

6 5.9

7 6.8

8 7.5

9 8.1

10 9.0

Simple linear regression describes the linear relationship between a predictor variable, plotted on the x-axis, and a response variable, plotted on the y-axis

Independent Variable (X)

depe

nden

t V

aria

ble

(Y)

1oy a a x

X

Y

oa

1.0

1a

The best linear approximation involves finding values of a0 and a1 to minimize

Am. J. Phys. 67, 528 (June 1999).Barbara S. Andereck

Carefully read all of chapter 6 in the text.

Then, do problems 6.4 and 6.5.Hand in the written out equations that

you use, showing all work, your results, and the computer program, Mathematica, or Excel worksheet used.

Test covers chapters…1, 2, 3, and 6 of the textbook.

You may prepare both sides of an 8 ½ by 11 inch sheet with equations, examples, notes, or anything else you may wish to have with you. You will need your calculator.