Managerial Statistics International Edition 9th Edition by Gerald Keller – Test Bank

Managerial Statistics International Edition 9th Edition by Gerald Keller – Test Bank

CHAPTER 3 SECTION 1: GRAPHICAL DESCRIPTIVE TECHNIQUES II

TRUE/FALSE

1. The intervals (classes) in a histogram do not overlap.

ANS:TPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics

2. The intervals (classes) in a histogram are equally wide.

ANS:TPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics

3. In a histogram, each observation is assigned to one or more classes.

ANS:FPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics

4. The number of class intervals in a histogram depends on the number of observations in the data set.

ANS:TPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics

5. A relative frequency distribution describes the proportion of data values that fall within each category.

ANS:TPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics

6. A stem-and-leaf display reveals more information about the original data than does a histogram.

ANS:TPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics

7. The number of observations within each class may be found in a frequency distribution.

ANS:TPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics

8. The advantage of a stem-and-leaf display over a histogram is that we can see the actual observations.

ANS:TPTS:1REF:SECTION 3.1

NAT: Analytic; Descriptive Statistics