A study of fish weights was undertaken at Lake Julian.

The weights of 127

fish were recorded (in grams)

along with the height and width (in mm) of each fish. The scientist would like to see if height or w

idth

would be a better predictor of weight.

a)

Prepare

a scatter plot showing the relationship between

the

weight

and each of the

independent variables.

Properly format (trend line with equation,

modify equation with variable

names rather than x & y,

axes labels, etc.)

this scatterplot

and paste into a Word d

ocument with

a Figure number. Write a interpretation which includes which variable is the best predicto

r

,

discuss the model fit,

and

write the regression

equation

of the best

predictor.

b)

How did you choose Height or W

idth

as your best predictor?

c)

How do you

use the value of Significance F in the model with only one independent variable?

d)

Create a ANOVA table for your best predictor (using Excel's Regression procedure), format it to

show no more than 3 decimal places and remove duplicate columns. Copy and pas

te it at of the

end of the Word document you created in part (a).

e)

Based on your best model,

what is the predicted weight of a fish that is 14 mm high and 5mm

wide?