Consider the weight and blood pressure data in Problem 2.10. Fit a nointercept model to the data
Question:
Consider the weight and blood pressure data in Problem 2.10. Fit a nointercept model to the data and compare it to the model obtained in Problem 2.10. Which model would you conclude is superior?
Data From Problem 2.10
The weight and systolic blood pressure of 26 randomly selected males in the age group 25-30 are shown below. Assume that weight and blood pressure (BP) are jointly normally distributed.
a. Find a regression line relating systolic blood pressure to weight.
b. Estimate the correlation coefficient.
c. Test the hypothesis that ρ=0.
d. Test the hypothesis that ρ=0.6.
e. Find a 95 CI for ρ.
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Related Book For
Introduction To Linear Regression Analysis
ISBN: 9781119578727
6th Edition
Authors: Douglas C. Montgomery, Elizabeth A. Peck, G. Geoffrey Vining
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