COMMERCE 2QA3 Study Guide - Quiz Guide: Pearson Education, Scatter Plot, Ukrainian Independent Information Agency
16 Dec 2014
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Short answer - quiz a: a sample of 30 companies was randomly selected for a study investigating what factors affect the size of company bonuses. Copyright 2014 pearson canada inc: an alternative multiple regression model is fit to these data and the results are shown below. Explain: using the better model, predict the annual average bonus for a company with 7500 employees that are not unionized. Average bonus = 348 + 0. 655 employees + 1259. 5 union: yes, the p-value associated with each t-test for the regression coefficients of employees and. Union is < 0. 05, therefore in each case we reject the null hypothesis. We can conclude that the regression coefficients associated with these two independent variables are significantly different from zero: the estimated regression coefficient for union is 1259. 5. Employees*union rather than the indicator variable union might be more appropriate: this second model is better. All independent variables (including the interaction term) are significant.
