DSCI 3331- Final Study Guide Questions and answers already Graded A+

DSCI 3331- Final Study Guide Questions and answers already Graded A+ Trying various approaches and picking the one that results in the best decision is called the trial and error method. True / False - True The primary purpose of quantitative model is to : - help the decision maker gain insight into the important relationships involved in the deicison The best regression model is a statistically significant model with a high r-quare and a few variables - True Enrollment in a particular class for the last four semesters has been 120, 126, 110, and 130 (in order from oldest to recent). Develop a forecast of enrollment next semester using exponential smoothing with an alpha=0.2. Assume that an initial forecast for the first semester was 120. - 121.17 Which of the following methods produces a particularly stiff penalty in periods with large forecast errors? - MSE