a. Using any statistical software, produce a scatter plot for these data with stress test score as the independent variable and the blood pressure as the dependent variable. b. Describe the form, trend, and strength of of the association between stress test scores and blood pressure. c. Produce the line of best fit and the estimate linear regression. d. Estimate the blood pressure of the student if his stress test score is 80, 60, and 85.

a. Using any statistical software, produce a scatter plot for these data with stress test score as the independent variable and the blood pressure as the dependent variable. b. Describe the form, trend, and strength of of the association between stress test scores and blood pressure. c. Produce the line of best fit and the estimate linear regression. d. Estimate the blood pressure of the student if his stress test score is 80, 60, and 85.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Question

a. Using any statistical software, produce a scatter plot for these data with stress test score as the independent variable and the blood pressure as the dependent variable.
b. Describe the form, trend, and strength of of the association between stress test scores and blood pressure.
c. Produce the line of best fit and the estimate linear regression.
d. Estimate the blood pressure of the student if his stress test score is 80, 60, and 85.

The university medical office developed a test designed to measure a student's
stress level. The test is designed so that higher scores mean higher stress levels
The blood pressure of students who volunteered for this testing was recorded.
Stress test score
52
95
66
76
83
91
Blood pressure
70
92
78
80
85
84

Definition Definition Representation of the direction and degree of correlation in graphical form. The grouping of points that are plotted makes it a scatter diagram. A line can be drawn showing the relationship based on the direction of points and their distance from each other.

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