Refer to Exercise 14.36.
a. Are the computational formulas for obtaining the sum of squares appropriate for the data in the tomato experiment? Justify your answer.
b. Verify that there are no major violations in the conditions necessary to conduct the F tests in the AOV table.
c. Write a linear model for this experiment, and estimate all the terms in your model using the data in Exercise 14.36.
In exercise

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Percent Shading Growth Stage 25% 50% 75% Early 70.6 57.2 69.5 57.2 56.3 53.2 55.4 62.9 59.0 40.8 44.2 55.1 3.7 Middle 42.3 78.3 50.1 67.1 66.0 62.6 57.1 58.5 52.7 60.0 624 42.5 Late 69.1 56.8 57.3 61.3 67.4 73.3 55.8 43.5 62.1 72.8 75.3 75.0 63.0 57.2