Beauponte Mezonlin
ETM 620
Final Exam
Problem 1
1.) 1. Recent studies show that high sound level (in decibels) makes humans prone to
hypertension and heart attacks. For example, normal conversation level is 60 dB, for textile looms
it is 105 dB, and for pneumatic chippers it is 115 dB. The accompanying coded data give the
noise level and the hypertension for people who work in noisy places. Using this data: (10
points)
Construct a scatter plot for these data. Does the scatter plot indicate that a straight‐line would provide a
good fit?
Since there is no clear straight line, therefore a straight line would not be a good fit.
2.) Fit a regression line to these data for predicting the hypertension level
of a person.
