Refer to the Chemicial Engineering Progress (Jan. 2005) study of the rate at which a spilled volatile
Question:
Refer to the Chemicial Engineering Progress (Jan. 2005) study of the rate at which a spilled volatile liquid will spread across a surface, Exercise 10.10.
a. Find a 90% confidence interval for the mean mass, E(y), of all spills with an elapsed time of x = 8 minutes. Interpret the result.
b. Will a 90% confidence interval for mean mass, E(y), when x = x̅ be wider or narrower than the confidence interval, part a. Explain.
Data from Exercise 10.10
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.
Step by Step Answer:
Statistics For Engineering And The Sciences
ISBN: 9781498728850
6th Edition
Authors: William M. Mendenhall, Terry L. Sincich