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Regression and Predictions. Exercises use | Ch 10.3 - 28BSC

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 28BSC Chapter 10.3

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 28BSC

Problem 28 BSC

Regression and Predictions. Exercises use the same data sets as Exercises 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.

Figure

Sports Using the data from the preceding exercise, find the best predicted volume of a marble with a diameter of 1.50 cm. How does the result compare to the actual volume of 1.8 cm3?

Step-by-Step Solution:
Step 1 of 3

Problem 28 BSC

Answer:

Step1 of 3:

We have Exercises use the same data sets as Exercises in Section 10-2. In each case,

x

7.4

23.9

4.3

21.8

7

4

20.9

9.7

y

212.2

7148.1

41.6

5424.6

179.6

33.5

4780.1

477.9

Step2 of 3:

We need to 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.

find the best predicted volume of a marble with a diameter of 1.50 cm. How does the result compare to the actual volume of 1.8 cm3?

Step3 of 3:

Consider,

x

y

xy

7.4

212.2

1570.28

54.76

23.9

7148.1

170839.59

571.21

4.3

41.6

178.88

18.49

21.8

5424.6

118256.28

475.24

7

179.6

1257.2

49

4

33.5

134

16

20.9

4780.1

99904.09

436.81

9.7

477.9

4635.63

94.09

99

18297.6

396775.95

=1715.6

The equation of the...

Step 2 of 3

Chapter 10.3, Problem 28BSC is Solved
Step 3 of 3

Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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Regression and Predictions. Exercises use | Ch 10.3 - 28BSC

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