A contract engineer at DuPont Corp. studied the rate at which a spilled volatile liquid will spread
Question:
A contract engineer at DuPont Corp. studied the rate at which a spilled volatile liquid will spread across a surface (Chemical Engineering Progress, Jan. 2005). Assume 50 gallons of methanol spills onto a level surface outdoors. The engineer used derived empirical formulas (assuming a state of turbulent-free convection) to calculate the mass (in pounds) of the spill after a period of time ranging from 0 to 60 minutes. The calculated mass values are given in the accompanying table.
a. Construct a scattergram for the data, with y = calculated mass and x = time.
b. Find the least-squares line relating mass (y) to time (x).
c. Plot the least-squares line on the graph, part a.
d. Interpret the values of β̂o and β̂1.
Step by Step Answer:
Statistics For Engineering And The Sciences
ISBN: 9781498728850
6th Edition
Authors: William M. Mendenhall, Terry L. Sincich