The article “Statistical Design and Analysis of Qualification Test Program for a Small R...

The article “Statistical Design and Analysis of Qualification Test Program for a Small Rocket Engine” (Industrial Quality Control, 1964: 14–18) presents data from an experiment to assess the effects of vibration (A), temperature cycling (B), altitude cycling (C), and temperature for altitude cycling and firing (D) on thrust duration. A subset of the data is given here. (In the article, there were four levels of D rather than just two.) Use the Yates method to obtain sums of squares and the ANOVA table. Then assume that three- and four-factor interactions are absent, pool the corresponding sums of squares to obtain an estimate of σ², and test all appropriate hypotheses at level .05.