2. In an experiment conducted to determine which of 3 different missile systems is preferable, the...

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2. In an experiment conducted to determine which of 3 different missile systems is preferable, the propellant burning rate for 24 static firings was measured. Four different propellant types were used. The experiment yielded duplicate observations of burning rates at each combination of the treatments. Propellant Burning Rates Missile Propellant Type System B1 B2 B3 B4 A1 34 30.1 29.8 29 32.7 32.8 26.7 28.9 A2 32 30.2 28.7 27.6 33.2 29.8 28.1 27.8 A3 28.4 27.3 29.7 28.8 29.3 28.9 27.3 29.1 Let missile system and propellant type are labelled as factor A and factor B respectively, at the 5% significance level, test the significance of the factors and their interactions. Hence, suggest an appropriate model for the data set above. 2. In an experiment conducted to determine which of 3 different missile systems is preferable, the propellant burning rate for 24 static firings was measured. Four different propellant types were used. The experiment yielded duplicate observations of burning rates at each combination of the treatments. Propellant Burning Rates Missile Propellant Type System B1 B2 B3 B4 A1 34 30.1 29.8 29 32.7 32.8 26.7 28.9 A2 32 30.2 28.7 27.6 33.2 29.8 28.1 27.8 A3 28.4 27.3 29.7 28.8 29.3 28.9 27.3 29.1 Let missile system and propellant type are labelled as factor A and factor B respectively, at the 5% significance level, test the significance of the factors and their interactions. Hence, suggest an appropriate model for the data set above.