Assignment: Quiz Res 341
CHAPTER 3 ASSIGNMENT
DESCRIBING DATA: NUMERICAL MEASURES
Part I Select the correct answer and write the appropriate letter in the space provided. c 1. The arithmetic mean is computed by a. finding the value that occurs most often. b. finding the middle observation and dividing by 2. c. summing the values and dividing by the number of values. d. selecting the value in the middle of the data set.
c 2. To compute the arithmetic mean at least the a. nominal level of measurement is required. b. ordinal level of measurement is required. c. interval level of measurement is required. d. ratio level of measurement is required.
d 3. The value that occurs most often in a set of data is called the a. mean. b. median. c. geometric mean. d. mode.
a 4. What level of measurement is required to determine the mode? a. at least nominal level b. at least ordinal c. at least interval level d. ratio
d 5. For a symmetric distribution a. the mean is larger than the median. b. the mode is the largest value. c. the mean is smaller than the median. d. the mean and median are equal.
b 6. Which of the following is not true about the arithmetic mean. a. all the values are used in its calculation b. half of the observations are always larger than the mean c. it is influenced by a large value d. it is found by summing all the values and dividing by the number of observations
a 7. In a negatively skewed distribution a. the mean is smaller than the median. b. the mean is larger than the median. c. the mean and median are equal. d. the median and the mode are equal. b 8. What is the lowest level of measurement required for the median? a. nominal b. ordinal c. interval d. ratio
__a___ 9. The Dow Jones Industrial Average increased from 6110 at the end of the first quarter in 1996 to 11,109 at the end of the first quarter in 2006. The annual rate of increase is best described by the a. geometric mean. b. weighted mean.
DESCRIBING DATA: NUMERICAL MEASURES
Part I Select the correct answer and write the appropriate letter in the space provided. c 1. The arithmetic mean is computed by a. finding the value that occurs most often. b. finding the middle observation and dividing by 2. c. summing the values and dividing by the number of values. d. selecting the value in the middle of the data set.
c 2. To compute the arithmetic mean at least the a. nominal level of measurement is required. b. ordinal level of measurement is required. c. interval level of measurement is required. d. ratio level of measurement is required.
d 3. The value that occurs most often in a set of data is called the a. mean. b. median. c. geometric mean. d. mode.
a 4. What level of measurement is required to determine the mode? a. at least nominal level b. at least ordinal c. at least interval level d. ratio
d 5. For a symmetric distribution a. the mean is larger than the median. b. the mode is the largest value. c. the mean is smaller than the median. d. the mean and median are equal.
b 6. Which of the following is not true about the arithmetic mean. a. all the values are used in its calculation b. half of the observations are always larger than the mean c. it is influenced by a large value d. it is found by summing all the values and dividing by the number of observations
a 7. In a negatively skewed distribution a. the mean is smaller than the median. b. the mean is larger than the median. c. the mean and median are equal. d. the median and the mode are equal. b 8. What is the lowest level of measurement required for the median? a. nominal b. ordinal c. interval d. ratio
__a___ 9. The Dow Jones Industrial Average increased from 6110 at the end of the first quarter in 1996 to 11,109 at the end of the first quarter in 2006. The annual rate of increase is best described by the a. geometric mean. b. weighted mean.