A prestigious college is interested in factors that might be associated with better graduation rates. The administrators wonder whether there is a relationship between acceptance rates and graduation rates. Before proceeding with their regression inference, what conditions and assumptions must be satisfied? Are they? (Source: US News and World Report National University Rankings October 2013. colleges .usnews.rankingsandreviews.com/best-colleges/rankings /national-universities/data/spp%2B50/ page +l) Response variable is Grad%
R-squared = 75.2%
s = 0.0254 with 50 - 2 = 48 degrees of freedom

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Variable Coefficient SE(Coeff) t-Ratio P-Value Intercept Acceptance % -0.284895 0.0236-12.1 0.0001 0.975175 0.0074 13 s0.0001 095 0.90 0.85 0.80 0.2 0.4 0.6 Acceptance (96) 0.04 0.00. -0.08 0.15 0.30 0.45 0.60 Acceptance (%) 20 15 10 5 -0.10 0.02 Rocidiole 0.06