A study was conducted on a high-pressure inlet fogging method for a gas turbine

Question

A study was conducted on a high-pressure inlet fogging method for a gas turbine engine. Researchers considered two models. Partial output is provided below. Source Df SS MS F Regression 5 148526859 29705372 94 Error 61 19370350 317547 Total ??? 167897208 Source Df SS MS F Regression ??? 142586570 47528857 ??? Error 63 25310639 401756 Total ??? 167897208 Answer the following questions rounding off at the nearest integer. The number of observations collected for the study is equal to The number of predictors considered in the reduced model is equal to The F-test for global utility of the reduced model is equal to Results suggest that the complete model provides additional information compared to the reduce model. In fact, the F-test for nested models is equal to which is greater than the rejection region F(alpha =0.05) with numerator degrees of freedom equal to and denominator degrees of freedom equal to .

Explanation / Answer

F(0.05, 5, 61) = =F.INV.RT(0.05,5,61) = 2.3656

Source DF SS MS F Regression 5 148526859 29705372 94 Error 61 19370350 317547 Total 66 167897209

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