Do #s 1, 4, 5, 8, and 13

for credit, show all work...

for example, if asked to calculate a mean of two data points, type out:

xbar = (10+19)/2 = 14.5

Test Yourself 1. For each of the data sets that follow, c. Mode calculate the mean, median, and mode. d. None of the above a. 1, 3, 4, 4, 4, 5. 7 7. Which measure of central tendency is most b. 1, 1, 1, 1, 1, 2. 2. 7 appropriate for nominal data? c. 1, 2, 3, 2, 2, 5, 7, 7, 7, 2, 7, 2, 7, 7. 2 a. Mean 2. For each data set in Question 1, which b. Median measure of central tendency would you c. Mode choose as the most representative of d. None of the above the data set? Explain why you chose that measure. 8. Which measure of central tendency will provide the middle score in a symmetrical 3. How do the mean, median, and mode distribution? compare for symmetrical and skewed distributions li.e., which is highest and a. Mean lowest in value)? b. Median 4. Which measure of central tendency is most c. Mode commonly reported? d. All of the above a. Mean 9. The purpose of reporting a measure of b. Median central tendency is to indicate the spread of c. Mode the scores in the distribution. d. None of the above a. True b. False 5. Which measure of central tendency is most affected by extreme scores? 10. The mean of a distribution is a descriptive a. Mean statistic. b. Median a. True c. Mode b. False d. None of the above 11. In a positively skewed distribution, the mean will be lower than the median. 6. Which measure of central tendency is most appropriate to report for skewed a. True distributions? b. False a. Mean 12. The mean is the best measure of central b. Median tendency to report when there are open