The engineering department at a steel mill is studying the tensile strength of a particular grade of
Question:
a. How many levels did pressure have?
b. How many observations were run for each combination of pressure-temperature settings?
c. At the 5% significance level, can you conclude that there is interaction between pressure and temperature?
d. At the 5% significance level, can you conclude that the main effect of pressure is significant?
e. At the 5% significance level, can you conclude that the main effect of temperature is significant?
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Related Book For
Business Statistics Communicating With Numbers
ISBN: 9780078020551
2nd Edition
Authors: Sanjiv Jaggia, Alison Kelly
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