Run a regression of profits against revenues and number of employees for the airline industry using the data in the following table. Interpret all your findings.
Answer to relevant QuestionsWhat is a response surface? For a regression model with seven independent variables, what is the dimensionality of the response surface? Use a computer to produce a prediction interval and a confidence interval for the conditional mean of Y for the prediction in problem 11-50. Use the data in Table. For a multiple regression model with two independent variables, results of the analysis include ∑y = 852, ∑x1 = 155, ∑x2 = 88, ∑x1y = 11,423, ∑x2y = 8,320, ∑x1x2 = 1,055, ∑x21 = 2,125, and ∑x22 = 768, n = ...Find the value of the Durbin-Watson statistic for the model of Example 11-3, and conduct the Durbin-Watson test. Is the assumption of no first-order error autocorrelation satisfied? Explain. The following are weekly sales data, in thousands of units, for microcomputer disks: 57, 58, 60, 54, 56, 53, 55, 59, 62, 57, 50, 48, 52, 55, 58, 61 Use w = 0.3 and w = 0.8 to produce an exponential smoothing model for these ...
Post your question