And brogden- cronbach-gleser models utility

2. a. A researcher wants to compare e-learning to classroom instruction in principles of life insurance. Fifty trainees are assigned randomly to each type of training. What is the researcher’s null hypothesis?

b. What statistical test would you use, and why?

b. Test the value of -0.57 for statistical significance from zero at p <.01. What critical value did you use?

c. What is your interpretation of the value of 0.57?

other customers from the same-brand store in Central: 0.78 and .91. Are these values significantly different from each other at p < .05?

b. What is the average value of the correlations that the researcher obtained?

The test is scored so that it yields a mean score of 300 and a standard deviation of

75 points. You know from previous research that the reliability of the test is .94. He asks you for advice about whether he should retake the test. Compute a 95 percent confidence interval for his test score, and use it to advise him about his future prospects.

d. In two-variable regression, how does one tell if it is worth it to compute a regression line?

9. a. Your boss chooses only extremely poor (or extremely good) performers to participate in a training program. How are the outcomes of his decision likely to be affected by the phenomenon known as “regression toward the mean”?

13. a. Based on a study you conduct, you calculate a correlation of 0.35 between employee-engagement scores and customer satisfaction. Interpret this result in statistical terms.

b. Your boss looks at your data and concludes, “We should invest in HR programs to improve employee-engagement scores so that we can improve customer satisfaction. How do you respond?

time?

17. Why should efforts to reduce employee absenteeism or employee turnover focus special attention on pivotal jobs?

22. In staffing, how do changes in the predictor cutoff affect the incidence of Type I (erroneous acceptance) and Type II (erroneous rejection) errors?

23. a. If you wanted to adjust the Brogden-Cronbach-Gleser model of utility for the effects of economic factors (variable costs, taxes, and discounting), what formula would you use?