Intro Stats, Books a la Carte Edition (5th Edition)
5th Edition
ISBN: 9780134210285
Author: Richard D. De Veaux, Paul Velleman, David E. Bock
Publisher: PEARSON
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Chapter R, Problem 2.9RE
a.
To determine
Write the regression equation.
b.
To determine
Find the interpretation of the coefficient of pH.
c.
To determine
Predict the BCI for a stream with a pH of 8.2.
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STER.
1. Wine Consumption. The table below gives the U.S. adult wine consumption, in gallons per
person per year, for selected years from 1980 to 2005.
a) Create a scatterplot for the data. Graph the scatterplot
Year
Wine
below.
Consumption
2.6
b) Determine what type of model is appropriate for the
1980
data.
1985
2.3
c) Use the appropriate regression on your calculator to find a
Graph the regression equation in the same coordinate
plane below.
d) According to your model, in what year was wine
consumption at a minimum? A
e) Use your model to predict the wine consumption in
2008.
1990
2.0
1995
2.1
2000
2.5
2005
2.8
Using the table below:
a. Plot the points in a graphing paper
b. Find the regression line and correlation between the stride length, x, and speed y,
done by dogs. (Draw and include the regression line in the graphing paper of
"a" )
c. If a dog has a speed of 25m/s, what is its expected stride length?
d. If a dog made a stride length of 10m, what was its speed?
Dogs
Stride length (meters)
1.5
1.7
2.0
2.4
2.7
3.0
3.2
3.5
Speed (meters per second)
3.7
4.4
4.8
7.1
7.7
9.1
8.8
9.9
The regression equation for for the association between BMI and total cholesterol level is:
y = 28.07 + 6.49x
A.) Suppose a participant has a BMI of 26. What would we estimate the total cholesterol to be?
B.) Suppose two individuals have a mean BMI that differs by 3 units. What is the estimated difference in total cholesterol.
C.) What ranges of BMI should the equation be used to predict total cholesterol?
Chapter R Solutions
Intro Stats, Books a la Carte Edition (5th Edition)
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R - Prob. 5.40RECh. R - Prob. 5.41RECh. R - Prob. 5.42RECh. R - Prob. 5.43RECh. R - Prob. 5.44RECh. R - Prob. 5.45RECh. R - Learning math Developers of a new math curriculum...Ch. R - Prob. 5.47RECh. R - Dairy sales Peninsula Creameries sells both...Ch. R - Diet Thirteen overweight women volunteered for a...Ch. R - Cramming Students in two basic Spanish classes...Ch. R - Prob. 5.51RECh. R - Newspapers Who reads the newspaper more, men or...
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