Question: To study the effect of temperature on yield in a chemical process, five batches were produced at each of three temperature levels. The results follow.

To study the effect of temperature on yield in a chemical process, five batches were produced at each of three temperature levels. The results follow. Construct an analysis of variance table. Use a .05 level of significance to test whether the temperature level has an effect on the mean yield of the process. Conduct a 4 step hypothesis test.

Temperature

50 C60 C70C

34 30 23

24 31 28

36 34 28

39 23 30

32 27 31

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