Question 1

A possible problem with open-ended or unequal intervals is that they

Accepted Answer

A)  do not permit the computation of midpoints 
B)  are useful only for nominal-level variables 
C)  can be used only with variables that have few scores 
D)  cannot be used for interval-ratio level variables 
A)  do not permit the computation of midpoints 
B)  are useful only for nominal-level variables 
C)  can be used only with variables that have few scores 
D)  cannot be used for interval-ratio level variables A

Question 2

According to the report discussed in the text, about what percentage of high school students have used cigarettes, alcohol, marijuana, or cocaine at least once?

Accepted Answer

A)  100% 
B)  75% 
C)  25% 
D)  10% 
A)  100% 
B)  75% 
C)  25% 
D)  10% B

Question 3

Histograms and line charts or frequency polygons are used with data measured at the

Accepted Answer

A)  nominal level 
B)  ordinal level 
C)  interval-ratio level 
D)  any level 
A)  nominal level 
B)  ordinal level 
C)  interval-ratio level 
D)  any level C

Question 4

For a single variable at the interval-ratio level, an appropriate graph would be

Accepted Answer

A)  a pie chart 
B)  a histogram 
C)  a bivariate table 
D)  none of the above. Graphs are never used for interval-ratio level variables 
A)  a pie chart 
B)  a histogram 
C)  a bivariate table 
D)  none of the above. Graphs are never used for interval-ratio level variables

Question 5

When working with a very small number of cases, it is usually preferable to report

Accepted Answer

A)  percentages 
B)  proportions 
C)  fractions 
D)  actual frequencies 
A)  percentages 
B)  proportions 
C)  fractions 
D)  actual frequencies

Question 6

-In Table 1, what percentage of cases is in the 18-23 age group?

Accepted Answer

A)  ( 5/36) x 100 = 13.51% 
B)  (18/23) x 100 = 78.26% 
C)  (36/ 5) x 100 = 7.4% 
D)  ( 5/21) x 100 = 23.81% 
A)  ( 5/36) x 100 = 13.51% 
B)  (18/23) x 100 = 78.26% 
C)  (36/ 5) x 100 = 7.4% 
D)  ( 5/21) x 100 = 23.81%

Question 7

To calculate a proportion, the number of cases in any category (f) is divided by

Accepted Answer

A)  the total number of categories (k) 
B)  the number of cases in all categories (N) 
C)  the cases in that category (f) 
D)  the number of cases in adjacent categories (k-1) 
A)  the total number of categories (k) 
B)  the number of cases in all categories (N) 
C)  the cases in that category (f) 
D)  the number of cases in adjacent categories (k-1)

Question 8

According to information presented in the text, the US divorce rate

Accepted Answer

A)  has generally fallen since the early 1980s 
B)  has been rising steadily since the 1950s 
C)  has been basically unchangedsince the 1970s 
D)  rose until the 1990s and then began to fall sharply 
A)  has generally fallen since the early 1980s 
B)  has been rising steadily since the 1950s 
C)  has been basically unchangedsince the 1970s 
D)  rose until the 1990s and then began to fall sharply

Question 9

The sum of the proportions for all categories of a variable will be

Accepted Answer

A)  100.00 
B)  10.00 
C)  1.00 
D)  0.10 
A)  100.00 
B)  10.00 
C)  1.00 
D)  0.10

Question 10

Frequency distributions may be compiled for variables measured at which level?

Accepted Answer

A)  nominal 
B)  ordinal 
C)  interval-ratio 
D)  all of the above 
A)  nominal 
B)  ordinal 
C)  interval-ratio 
D)  all of the above

Question 11

-In Table 2, which is the correct fraction for determining the proportion of Independents in community B?

Accepted Answer

A)  15/17 
B)  15/264 
C)  64/15 
D)  15/64 
A)  15/17 
B)  15/264 
C)  64/15 
D)  15/64

Question 12

The crude birth rate of a city that has 250 births in a year and a population of 7500 would be found by using which of the following?

Accepted Answer

A)  crude birth rate = (250/7500) x 1000 
B)  crude birth rate = 7500/250 
C)  crude birth rate = (1000/7500) x 250 
D)  crude birth rate = (250/1000) x 7500 
A)  crude birth rate = (250/7500) x 1000 
B)  crude birth rate = 7500/250 
C)  crude birth rate = (1000/7500) x 250 
D)  crude birth rate = (250/1000) x 7500

Question 13

If 60 cases range in score from 4 to 84 and you want 10 intervals in a frequency distribution, approximately what will be the width of each interval?

Accepted Answer

A)  4 
B)  8 
C)  12 
D)  60 
A)  4 
B)  8 
C)  12 
D)  60

Question 14

A city of 1567 people had 34 auto thefts last year. The auto theft rate for this city

Accepted Answer

A)  cannot be determined from the information given 
B)  is falling 
C)  is (34/1567) x 100,000 
D)  is (100,000 x 1567)/34 
A)  cannot be determined from the information given 
B)  is falling 
C)  is (34/1567) x 100,000 
D)  is (100,000 x 1567)/34

Question 15

-In Table 2, which community has the higher proportion of Independents?

Accepted Answer

A)  Community A 
B)  Community B 
C)  Neither 
D)  This proportion can't be determined from the information given. 
A)  Community A 
B)  Community B 
C)  Neither 
D)  This proportion can't be determined from the information given.

Question 16

Forty of every two hundred students attend all of their classes. What percentage of the student body is this?

Accepted Answer

A)  5% 
B)  50% 
C)  2% 
D)  20% 
A)  5% 
B)  50% 
C)  2% 
D)  20%

Question 17

To find the ratio of smokers to non-smokers, you would

Accepted Answer

A)  divide the number of non-smokers by the number of smokers 
B)  add them together and divide by the number of smokers 
C)  divide the number of smokers by the number of non-smokers 
D)  multiply the number of smokers by the total number of people 
A)  divide the number of non-smokers by the number of smokers 
B)  add them together and divide by the number of smokers 
C)  divide the number of smokers by the number of non-smokers 
D)  multiply the number of smokers by the total number of people

Question 18

-In Table 2, what is the ratio of Independents to Socialists in Community A?

Accepted Answer

A)  15:11 
B)  17:9 
C)  9:17 
D)  17:264 
A)  15:11 
B)  17:9 
C)  9:17 
D)  17:264

Question 19

In reading SPSS output for the Frequencies procedure, we usually ignore the 'Percent' column because it

Accepted Answer

A)  includes "missing" scores 
B)  excludes scores labeled DK and NA 
C)  is appropriate only for nominal-level variables 
D)  is based on cumulative percentages 
A)  includes "missing" scores 
B)  excludes scores labeled DK and NA 
C)  is appropriate only for nominal-level variables 
D)  is based on cumulative percentages

Question 20

-In Table 2, what is the ratio of Socialists to Democrats in Community B?

Accepted Answer

A)  11:21 
B)  11:64 
C)  64:11 
D)  9:11 
A)  11:21 
B)  11:64 
C)  64:11 
D)  9:11

A possible problem with open-ended or unequal intervals is that they

According to the report discussed in the text, about what percentage of high school students have used cigarettes, alcohol, marijuana, or cocaine at least once?

Histograms and line charts or frequency polygons are used with data measured at the

For a single variable at the interval-ratio level, an appropriate graph would be

When working with a very small number of cases, it is usually preferable to report

-In Table 1, what percentage of cases is in the 18-23 age group?

To calculate a proportion, the number of cases in any category (f) is divided by

According to information presented in the text, the US divorce rate

The sum of the proportions for all categories of a variable will be

Frequency distributions may be compiled for variables measured at which level?

$-In Table 2, which is the correct fraction for determining the proportion of Independents in community B?$ -In Table 2, which is the correct fraction for determining the proportion of Independents in community B?

The crude birth rate of a city that has 250 births in a year and a population of 7500 would be found by using which of the following?

If 60 cases range in score from 4 to 84 and you want 10 intervals in a frequency distribution, approximately what will be the width of each interval?

A city of 1567 people had 34 auto thefts last year. The auto theft rate for this city

-In Table 2, which community has the higher proportion of Independents?

Forty of every two hundred students attend all of their classes. What percentage of the student body is this?

To find the ratio of smokers to non-smokers, you would

-In Table 2, what is the ratio of Independents to Socialists in Community A?

In reading SPSS output for the Frequencies procedure, we usually ignore the 'Percent' column because it

-In Table 2, what is the ratio of Socialists to Democrats in Community B?

Introduction

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction to Inferential Statistics Sampling the Sampling Distribution

Hypothesis Testing I the One-Sample Case

Hypothesis Testing II the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Hypothesis Testing Iv Chi Square

Bivariate Association for Nominal- and Ordinal-Level Variables

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and

Filters

Exam 2: Basic Descriptive Statistics Percentages, Ratios Rates, Tables, Charts Graphs

A possible problem with open-ended or unequal intervals is that they

According to the report discussed in the text, about what percentage of high school students have used cigarettes, alcohol, marijuana, or cocaine at least once?

Histograms and line charts or frequency polygons are used with data measured at the

For a single variable at the interval-ratio level, an appropriate graph would be

When working with a very small number of cases, it is usually preferable to report

-In Table 1, what percentage of cases is in the 18-23 age group?

To calculate a proportion, the number of cases in any category (f) is divided by

According to information presented in the text, the US divorce rate

The sum of the proportions for all categories of a variable will be

Frequency distributions may be compiled for variables measured at which level?

-In Table 2, which is the correct fraction for determining the proportion of Independents in community B?

The crude birth rate of a city that has 250 births in a year and a population of 7500 would be found by using which of the following?

If 60 cases range in score from 4 to 84 and you want 10 intervals in a frequency distribution, approximately what will be the width of each interval?

A city of 1567 people had 34 auto thefts last year. The auto theft rate for this city

-In Table 2, which community has the higher proportion of Independents?

Forty of every two hundred students attend all of their classes. What percentage of the student body is this?

To find the ratio of smokers to non-smokers, you would

-In Table 2, what is the ratio of Independents to Socialists in Community A?

In reading SPSS output for the Frequencies procedure, we usually ignore the 'Percent' column because it

-In Table 2, what is the ratio of Socialists to Democrats in Community B?

Introduction

Measures of Central Tendency

Measures of Dispersion

The Normal Curve

Introduction to Inferential Statistics Sampling the Sampling Distribution

Hypothesis Testing I the One-Sample Case

Hypothesis Testing II the Two-Sample Case

Hypothesis Testing III: the Analysis of Variance

Hypothesis Testing Iv Chi Square

Bivariate Association for Nominal- and Ordinal-Level Variables

Association Between Variables Measured at the Interval-Ratio Level

Partial Correlation and

Filters

$-In Table 2, which is the correct fraction for determining the proportion of Independents in community B?$ -In Table 2, which is the correct fraction for determining the proportion of Independents in community B?