Question 1

Which of the following is NOT a guideline for constructing graphs?

Accepted Answer

A) When possible,use graphics instead of bars. 
B) Always use bars of equal width. 
C) The two axes should be of approximately equal length. 
D) Avoid "chart junk" that clutters the graph.

Question 2

In the following distribution of the variable semesters completed,which of the following is the median: 4,3,1,0,3,3,4,0,3,2,4?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3

Question 3

Quantitative data that vary along a continuum are best displayed as which type(s)of graphs?

Accepted Answer

A) frequency polygon 
B) histogram 
C) bar chart 
D) frequency polygon and histogram

Question 4

In a regression analysis,if r = 0,then ______.

Accepted Answer

A) the correlation is perfect 
B) the correlation is negative 
C) the correlation is normal 
D) there is no linear correlation

Question 5

Probability average is another term for ______.

Accepted Answer

A) mean 
B) median 
C) mode 
D) none of these

Question 6

______ data displays would be the most appropriate for displaying the distribution of the highest year of school completed?

Accepted Answer

A) mean 
B) mode 
C) histogram 
D) regression

Question 7

When you create a percentage table,you should percentage ______.

Accepted Answer

A) the columns 
B) the rows 
C) the columns and the rows 
D) neither columns nor rows

Question 8

The mean is the most commonly used measure of central tendency for quantitative variables.

Accepted Answer

A) True 
 B)False

Question 9

Describe situations in which a variable's variability is best measured by the range,interquartile range,and standard deviation,providing at least two concrete examples of each.

Accepted Answer

The answer of Describe situations in which a variable's variability...

Question 10

The most commonly used level of statistical significant is ______.

Accepted Answer

A) p  .01

Question 11

If you want to display the percentage of men in eight team sports as compared to women in the most efficient table,use a ______.

Accepted Answer

A) combined frequency display 
B) compressed frequency display 
C) frequency polygon 
D) histogram

Question 12

The probability average is also the ______.

Accepted Answer

A) mean 
B) median 
C) mode 
D) variance

Question 13

A frequency polygon displays number and percentage of cases per cell in a table.

Accepted Answer

A) True 
 B)False

Question 14

Three features of a shape are important in a univariate distribution: mean,median,and mode.

Accepted Answer

A) True 
 B)False

Question 15

The median is most suited to measure the central tendency of variables measured at the ordinal level,but it can be used at the interval and ratio levels as well.

Accepted Answer

A) True 
 B)False

Question 16

In the following distribution of the variable semesters completed,which of the following whole numbers is closest to the mean: 4,3,1,0,3,3,4,0,3,2?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3

Question 17

A correlation coefficient varies from ______.

Accepted Answer

A) −1 to 1 
B) 0 to 1 
C) 1-10 
D) −1 to 0

Question 18

Data should be grouped in distributions in all of the following situations EXCEPT ______.

Accepted Answer

A) There are more than 15-20 values on the variable to begin with. 
B) There are too many categories to be displayed on an easily readable table. 
C) The distribution will be clearer if some values are combined. 
D) The values between categories are significantly different.

Question 19

Range is computed by subtracting the highest value from the lowest value and adding 1.

Accepted Answer

A) True 
 B)False

Question 20

______ is NOT a criterion that should be considered when determining which studies to include in a meta-analysis.

Accepted Answer

A) Time frame 
B) Tables displayed 
C) Publication type 
D) Research methods

Exam 9: Quantitative Data Analysis

Which of the following is NOT a guideline for constructing graphs?

In the following distribution of the variable semesters completed,which of the following is the median: 4,3,1,0,3,3,4,0,3,2,4?

Quantitative data that vary along a continuum are best displayed as which type(s) of graphs?

In a regression analysis,if r = 0,then ______.

Probability average is another term for ______.

______ data displays would be the most appropriate for displaying the distribution of the highest year of school completed?

When you create a percentage table,you should percentage ______.

The mean is the most commonly used measure of central tendency for quantitative variables.

Describe situations in which a variable's variability is best measured by the range,interquartile range,and standard deviation,providing at least two concrete examples of each.

The most commonly used level of statistical significant is ______.

If you want to display the percentage of men in eight team sports as compared to women in the most efficient table,use a ______.

The probability average is also the ______.

A frequency polygon displays number and percentage of cases per cell in a table.

Three features of a shape are important in a univariate distribution: mean,median,and mode.

The median is most suited to measure the central tendency of variables measured at the ordinal level,but it can be used at the interval and ratio levels as well.

In the following distribution of the variable semesters completed,which of the following whole numbers is closest to the mean: 4,3,1,0,3,3,4,0,3,2?

A correlation coefficient varies from ______.

Data should be grouped in distributions in all of the following situations EXCEPT ______.

Range is computed by subtracting the highest value from the lowest value and adding 1.

______ is NOT a criterion that should be considered when determining which studies to include in a meta-analysis.