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Solved: The exercises are based on the following sample

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

Solution for problem 1 CQQ Chapter 10.6

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 1 CQQ

Problem 1 CQQ

The exercises are based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD).

Systolic

138

130

135

140

120

Diastolic

82

91

100

100

80

If you plan to use a 0.05 significance level in a test of a correlation between the systolic and diastolic readings, what are the critical values of r?

Step-by-Step Solution:

Answer

Step 1 of 3

Systolic(x)

Diastolic(y)

x2

y2

xy

138

82

19044

6724

11316

130

91

16900

8281

11830

135

100

18225

10000

13500

140

100

19600

10000

14000

120

80

14400

6400

9600

x=663

x=453

x2=88169

y2=41405

xy=60246

Step 2 of 3

Chapter 10.6, Problem 1 CQQ is Solved
Step 3 of 3

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

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Solved: The exercises are based on the following sample