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D. Develop the null and alternative hypothesis for the bi coefficient (average price per patient - one-tail test), the b2 coefficient (average price charged by
D. Develop the null and alternative hypothesis for the bi coefficient (average price per patient - one-tail test), the b2 coefficient (average price charged by competition - one tail test) and the by coefficient (advertising variable - two tail test). Briefly describe when it is appropriate to use a one-tail test relative compared to a two-tailed t-test? Use a t-test to determine the level statistical significance for each individual independent variables at the 95 and 99 percent confidence levels
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