A study was made to determine if humidity conditions have an effect on the force required to
Question:
A study was made to determine if humidity conditions have an effect on the force required to pull apart pieces of glued plastic. Three types of plastic a retested use 4 different levels of humidity. The results, in kilograms, are as follows:(a) Assuming a model I experiment, perform an analysis of variance and test the hypothesis of no interaction between humidity and plastic type at the 0.05 level of significance.(b) Using only plastics A and B and the value of s2 from part (a), once again test for the presence ofInteraction at the 0.05 level of significance(c) Use a single-degree-of-freedom comparison and the value of s2 from part (a) to compare, at the 0.05 level of significance, the force required at 30% humidity versus 50%, 70%, and 90% humidity.(d) Using only plastic C and the value of s2 from part (a), repeat part(c).
Step by Step Answer:
Probability & Statistics For Engineers & Scientists
ISBN: 9780130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying