Microsoft Office Tutorials and References
In Depth Information
Fig. 6.31 Worksheet data
for Chap. 6: practice
problem #2
Create an Excel spreadsheet and enter the data using body weight (in grams) as
the
independent
variable
(predictor)
and
gill
weight
(in
milligrams)
as
the
dependent variable (criterion).
(a) create an XY scatterplot of these two sets of data such that:
• top
title:
RELATIONSHIP
BETWEEN
BODY
WEIGHT
AND
GILL
WEIGHT IN Pachygrapsus marmoratus
• x-axis title: BODY WEIGHT IN GRAMS (g)
• y-axis title: GILL WEIGHT IN MILLIGRAMS (mg)
• re-size the chart so that it is 7 columns wide and 25 rows long
• delete the legend
• delete the gridlines
• move the chart below the table
(b) Create the least-squares regression line for these data on the scatterplot.
(c) Use Excel to run the regression statistics to find the equation for the
leastsquares regression line for these data and display the results below the chart
on your spreadsheet. Use number format (two decimal places) for the
correlation, r, and for both the y-intercept and the slope of the line.
(d) Print the input data and the chart so that this information fits onto one page.
(e) Then, print out the regression output table so that this information fits onto a
separate page.
By hand:
(1a) Circle and label the value of the y-intercept and the slope of the regression
line onto that separate page.
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