i. Sketch a scatter diagram of the data and interpret the correlation coefficient.
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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q5 b
Transcribed Image Text:b)
Dr. Alia is monitoring 7 diabetic patients in her ward. After her morning round, she
observed that her patient' blood pressure, p mmHg and their age (t) is as follows:
Patient
t
р
1
44
90
Table 5: Blood pressure of Dr. Alia's patients
2
4
74
88
130
147
3
48
120
5
42
98
6
55
80
i. Sketch a scatter diagram of the data and interpret the correlation coefficient.
7
28
101
ii. Given the estimator of the standard error of the slope (s) is 0.02 and the linear
regression equation for the data is: 63.178 +0.854x, does the patient's age affect the
blood pressure reading? Test the hypothesis using 99% confidence level.
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