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Hypothesis Testing of Mean in SPSS

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See attached file using SPSS software to open the .sav file to view data.

During period of high electricity demand, especially during the hot summer months, the power output from a gas turbine engine can drop dramatically. One way to counter this drop in power is by cooling the inlet air to the gas turbine. An increasingly popular cooling method uses high pressure intlet fogging was investigated. The performance of a sample of 67 gas turbines augmented with high pressure inlet fogging was investigated in the Journal of Engineering for Gas Turbines and Power. Heat rates for the 67 gas turbines are in the file attached GASTURBINE file. A standard gas turbine has on average, a heat rate of 10,000 kj/kWh.

Conduct a test to determine if the mean heat rate of gas turbines augmented with high-pressure inlet fogging exceeds 10,000 kJ/kWh. Use ? = .05. (data for this question (GASTURBINE.sav). Note that here we are interested in the heat rate only.) Do not forget to state the hypothesis.

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The solution provides step by step method for the calculation of testing of hypothesis. Formula for the calculation and Interpretations of the results are also included.

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