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Question 1 Two catalysts are being analysed to determine how they affect the mean yield of a...

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Civil Engineering

Question 1

Two catalysts are being analysed to determine how they affectthe mean yield of a chemical process. Specifically, catalyst 1 iscurrently used; but catalyst 2 is acceptable. Since catalyst 2 ischeaper, it should be adopted if it does not change the processyield. A test is run in the pilot plant and the results are shownas follows:


Catalyst Yield Data Observation Number 1 2 3 4 5 6 7 8 Catalyst 191.5 94.18 92.18 95.39 91.79 89.07 94.72 89.21
Catalyst 2 89.19 90.95 90.46 93.21 97.19 97.04 91.07 92.75


Is there any difference in the mean yields at 5% significance levelassuming equal variances? [20]

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