To study the effect of temperature on yield in a chemical process, five batches
ID: 3158269 • Letter: T
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.
Temperature
a) Construct an analysis of variance table (to 2 decimals, if necessary).
b) Use a .05 level of significance to test whether the temperature level has an effect on the mean yield of the process.
Calculate the value of the test statistic (to 2 decimals).
c) What is the p-value ?
d)What is your conclusion?
Temperature
50°C 60°C 70°C 31 32 25 21 33 30 33 36 30 36 25 32 29 29 33Explanation / Answer
50° 60° 70° 31 32 25 21 33 30 RESUMEN 33 36 30 groups count sum average variance 36 25 32 50° 5 150 30 32 29 29 33 60° 5 155 31 17.5 70° 5 150 30 9.5 ANÁLISIS DE VARIANZA variations SS df MS F p value critical value f between 3.33333333 2 1.66666667 0.08474576 0.91929073 3.88529383 error 236 12 19.6666667 Total 239.333333 14
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