An article in Quality Engineering [Designed Experiment to Stabilize Blood Glucose Levels (19992000,)] described an experiment to

An article in Quality Engineering [€œDesigned Experiment to Stabilize Blood Glucose Levels€ (1999€“2000,)] described an experiment to minimize variations in blood glucose levels. The treatment was the exercise time on a Nordic Track cross-country skier (10 or 20 min). The experiment was blocked for time of day. The data were as follows:

(a) Is there an effect of exercise time on the average blood glucose? Use α = 0.05.

(b) Find the P-value for the test in part (a).

(c) Analyze the residuals from this experiment.

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Exercise (min) Time of Day Average Blood Glucose 71.5 10 pm 10 103.0 am 20 83.5 am 20 126.0 pm 10 125.5 10 129.5 pm 20 95.0 pm 93.0 am