(6 mark (b) T hree fuel injection systems are tested for efficiency and the coded data in Table 5.0 are obtained. Making the usual assumptions for Analysis of Variance (ANOVA), test whether the data support the fact that the systems offer equivalent levels of efficiency? (8 marks) (Note: ANOVA formulae are available on page ten of the formulae pack. Distribution Tables are available on pages eleven to thirteen of the formulae pack.) System 1 System 2 System 3 48 56 60 50 Table 5.0 Yield % versus Temperature (°C)
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he mean and standard deviation for the given
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