Data Analysis and Economic Forecasting
|These questions are from the test bank. Some questions have multiple parts.|
1. Why do econometricians use the t-statistic, rather than the z-values from a normal distribution?
2. What is the difference between the normal distribution and chi-square distribution?
What is the difference between a chi-square distribution and F-statistic?
3. What is R2?
What are its shortcomings?
4. Which equations below are linear in parameters?
5. Below you have five observations for two samples. These observations are not paired. Please calculate the t-test for equal variances, when tc = 2.31.
6. Below you have five observations for two treatments given. Each observation is one patient who received both treatments, i.e. observations are pair. Are the two treatments significantly different from each other, using a tc = 2.77?
7. You have a 3 X 2 contingency table below. Use the Chi-Square
test to determine if men and women differ for their favorite breakfast
8. Using the same data as in Question #7, please use the Yate's
What is your conclusion?
9. You have a 2 X 2 contingency table below for the acceptance rate for the Department of Economics. Please use Fisher's Exact Probability test to determine all the probability states..
10. Parts of your Excel output are missing, please calculate the
11. Parts of your Excel output are missing, please calculate the
12. A computer virus infected your Excel program. Thus
many calculations are missing from the ANOVA table. Please
manually calculate the remaining values.
13. Using the same ANOVA from Question #12, please calculate the following:
Designed by Kenneth R. Szulczyk ©2011