To study the effect of temperature on yield in a chemical process, four batches were

produced at each of three temperature levels. The results follow. Construct an analysis of

variance table. State the Hypotheses. Use a .05 level of significance to test whether the

temperature level has an effect on the mean yield of the process. Use both p-Value and

Critical-Value approaches.

50 degrees 60 degrees 70 degrees

34 30 23

24 31 28

36 34 28

29 23 30