Question: For the snap-bean data, use a t test to test the null hypothesis of no interaction against the alternative that sulfur dioxide is more harmful

For the snap-bean data, use a t test to test the null hypothesis of no interaction against the alternative that sulfur dioxide is more harmful in the presence of ozone than in its absence. Let α = 0.05. How does this compare with the F test of Exercise 11.S.6(b) (which has a non directional alternative)?

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