In the study An X-Ray Fluorescence Method for Analyzing Polybutadiene-Acrylic Acid (PBAA) Propellants, Quarterly Reports, RK-TR-62-1, Army Ordnance Missile Command, an experiment was conducted to determine whether or not there is a significant difference in the amount of aluminum achieved in the analysis between certain levels of certain processing variables.The data given in the table were recorded. The variables are given belowA: mixing time level 1-2 level 2 - 4 hoursB: blade speed level 1-36 rpin level 2-78 rpinC: condition of nitrogen passed over propellant level 1-dry level 2-72% relative humidityD: physical state of propellant level 1-uncured level 2-curedAssuming all three- and four-factor interactions to be negligible, analyze the data. Use a 0.05 level of significance. Write a brief report summarizing thefindings.

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Phys. Mixing Blade Nitrogen Obs. State Time Speed Condition Aluminum 16.3 16.0 16.2 16.1 16.0 16.0 15.5 15.9 16.7 16.1 16.3 15.8 15.9 15.9 2 2 4 2 1. 2 10 11 12 13 14 2 2 15 16 2 15.6 1 15.8 2211--22221 1.