Essentials of Statistics Books a la carte Plus NEW MyLab Statistics with Pearson eText - Access Card Package (5th Edition)
5th Edition
ISBN: 9780133892697
Author: Mario F. Triola
Publisher: PEARSON
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Textbook Question
Chapter 10.3, Problem 19BSC
Regression and Predictions. Exercises 13-28 use the same data sets as Exercises 13-28 in Section 10-2. In each case, find the regression equation, letting the first variable be the predictor (x) variable. Find the indicated predicted value by following the prediction procedure summarized in Figure 10-5.
19. Galaxy Distances The cluster Hydra has a measured redshift of 0.0126. Find the best predicted distance to that cluster. Is the result close to the actual distance of 0.18 billion light-years?
Redshift | 0.0233 | 0.0639 | 0.0718 | 0.0395 | 0.0438 | 0.0103 |
Distance | 0.32 | 0.75 | 1.00 | 0.55 | 0.61 | 0.14 |
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STER.
1. Wine Consumption. The table below gives the U.S. adult wine consumption, in gallons per
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a) Create a scatterplot for the data. Graph the scatterplot
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2.6
b) Determine what type of model is appropriate for the
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data.
1985
2.3
c) Use the appropriate regression on your calculator to find a
Graph the regression equation in the same coordinate
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1990
2.0
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2.8
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a significa
correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The table below shows the heights (in feet) and th
number of stories of six notable buildings in a city.
Height, x
Stories, y
(a) x = 503 feet
(c) x = 798 feet
768
628
518
511
491
478
(b) x = 639 feet
52
48
45
42
37
35
(d) x = 731 feet
Find the regression equation.
ŷ =x+ (D
(Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)
Choose the correct graph below.
Find the equation of the regression line for the given data. Then construct a scatter plot of the data and draw the regression line. (The pair of variables have a
significant correlation.) Then use the regression equation to predict the value of y for each of the given x-values, if meaningful. The table below shows the heights (in
feet) and the number of stories of six notable buildings in a city.
(a) x = 499 feet
(c) x = 798 feet
(b) x = 652 feet
(d) x = 736 feet
619
519
508
491
474
Height, x
Stories, y
775
53
47
44
43
39
37
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(Round the slope to three decimal places as needed. Round the y-intercept to two decimal places as needed.)
Chapter 10 Solutions
Essentials of Statistics Books a la carte Plus NEW MyLab Statistics with Pearson eText - Access Card Package (5th Edition)
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