Electromagnetic technologies offer effective nondestructive sensing techniques for determining characteristics of pavement. The propagation of electromagnetic waves
Question:
The following R output is from a simple linear regression of y on x:
a. Obtain the equation of the least squares line and interpret its slope.
b. What proportion of observed variation in dielectric constant can be attributed to the approximate linear relationship between dielectric constant and air void.
c. Does there appear to be a useful linear relationship between dielectric constant and air void? State and test the appropriate hypotheses.
d. Suppose it had previously been believed that when air void increased by 1 percent, the associated true average change in dielectric constant would be at least 2.05. Does the sample data contradict this belief? Carry out a test of appropriate hypotheses using a significance level of .01.
Step by Step Answer:
Probability And Statistics For Engineering And The Sciences
ISBN: 9781305251809
9th Edition
Authors: Jay L. Devore