Question 1

A distribution of scores may have more than one ______.

Accepted Answer

A)  mean 
B)  median 
C)  mode 
D)  standard deviation 
A)  mean 
B)  median 
C)  mode 
D)  standard deviation

Question 2

What is the sum of squared scores   for this set of data? 3.59, 3.02, 2.87, 3.16, 3.72

Accepted Answer

A)  3.27 
B)  16.36 
C)  54.07 
D)  267.65 
A)  3.27 
B)  16.36 
C)  54.07 
D)  267.65

Question 3

What is the standard deviation (s) for this set of data? 6, 13, 11, 9, 16

Accepted Answer

A)  3.81 
B)  11.00 
C)  14.50 
D)  3.41 
A)  3.81 
B)  11.00 
C)  14.50 
D)  3.41

Question 4

What is the population standard deviation (σ) for this set of data? 3.76, 4.12, 3.29, 2.84, 4.93, 2.15

Accepted Answer

A)  .98 
B)  3.52 
C)  .80 
D)  .89 
A)  .98 
B)  3.52 
C)  .80 
D)  .89

Question 5

One strength of the range is that it can be used in statistical analyses designed to test hypotheses about populations.

Accepted Answer

A) True 
 B)False

Question 6

The formula   is the ______ formula for the ______ .

Accepted Answer

A)  computational; degrees of freedom 
B)  computational; range 
C)  definitional; sum of squares 
D)  definitional; mean 
A)  computational; degrees of freedom 
B)  computational; range 
C)  definitional; sum of squares 
D)  definitional; mean

Question 7

What is the population standard deviation (σ) for this set of data? 2, 4, 1, 5, 3

Accepted Answer

A)  1.41 
B)  1.58 
C)  2.00 
D)  3.00 
A)  1.41 
B)  1.58 
C)  2.00 
D)  3.00

Question 8

______ is an example of a ______.

Accepted Answer

A)  μ; parameter 
B)  σ; measure of central tendency 
C)  μ; measure of variability 
D)  σ; statistic 
A)  μ; parameter 
B)  σ; measure of central tendency 
C)  μ; measure of variability 
D)  σ; statistic

Question 9

The formula   is the ______ formula for the ______ .

Accepted Answer

A)  definitional; variance 
B)  computational; standard deviation 
C)  computational; variance 
D)  definitional; mean 
A)  definitional; variance 
B)  computational; standard deviation 
C)  computational; variance 
D)  definitional; mean

Question 10

As the size of a sample (N) increases, the difference between the value of the sample standard deviation (s) and the population standard deviation (σ) calculated for the same set of data ______.

Accepted Answer

A)  increases 
B)  decreases 
C)  stays the same 
D)  none of these 
A)  increases 
B)  decreases 
C)  stays the same 
D)  none of these

Question 11

What is the sum of squared scores   for this set of data? 3, 6, 8, 9

Accepted Answer

A)  6.50 
B)  26.00 
C)  190.00 
D)  676.00 
A)  6.50 
B)  26.00 
C)  190.00 
D)  676.00

Question 12

What is the standard deviation (s) for this set of data? 24, 18, 21, 28

Accepted Answer

A)  4.27 
B)  22.75 
C)  18.25 
D)  3.70 
A)  4.27 
B)  22.75 
C)  18.25 
D)  3.70

Question 13

What is the sum of squared scores   for this set of data? 1.52, 2.04, 2.36, 1.91

Accepted Answer

A)  7.83 
B)  15.69 
C)  61.31 
D)  1.96 
A)  7.83 
B)  15.69 
C)  61.31 
D)  1.96

Question 14

Which of these is based on ALL of the scores in a set of data?

Accepted Answer

A)  standard deviation 
B)  median 
C)  mode 
D)  range 
A)  standard deviation 
B)  median 
C)  mode 
D)  range

Question 15

For this set of data,   is equal to ______. 17, 87, 101, 280, 680

Accepted Answer

A)  71853.50 
B)  1165 
C)  1357225 
D)  558859 
A)  71853.50 
B)  1165 
C)  1357225 
D)  558859

Question 16

For this set of data,   is equal to ______. 9, 8, 10, 5, 5, 2, 3, 9, 6, 3

Accepted Answer

A)  5.67 
B)  51 
C)  353 
D)  2601 
A)  5.67 
B)  51 
C)  353 
D)  2601

Question 17

To overcome the effects of outliers on the range for a set of data, one could instead calculate the ______.

Accepted Answer

A)  interquartile range 
B)  standard deviation 
C)  variance 
D)  mean 
A)  interquartile range 
B)  standard deviation 
C)  variance 
D)  mean

Question 18

After grading an exam, an instructor believes the test was easier than expected; this is because ______.

Accepted Answer

A)  the mean was higher than she expected 
B)  the standard deviation was larger than she expected 
C)  the mean was lower than she expected 
D)  the distribution was bimodal 
A)  the mean was higher than she expected 
B)  the standard deviation was larger than she expected 
C)  the mean was lower than she expected 
D)  the distribution was bimodal

Question 19

What is the range for this set of data? 3.09, 2.62, 2.81, 3.17, 3.62, 3.35

Accepted Answer

A)  .26 
B)  1.00 
C)  2.99 
D)  3.11 
A)  .26 
B)  1.00 
C)  2.99 
D)  3.11

Question 20

The average squared deviation of a score from the mean is the ______.

Accepted Answer

A)  range 
B)  interquartile range 
C)  variance 
D)  standard deviation 
A)  range 
B)  interquartile range 
C)  variance 
D)  standard deviation

A distribution of scores may have more than one ______.

What is the sum of squared scores for this set of data? 3.59, 3.02, 2.87, 3.16, 3.72

What is the standard deviation (s) for this set of data? 6, 13, 11, 9, 16

What is the population standard deviation (σ) for this set of data? 3.76, 4.12, 3.29, 2.84, 4.93, 2.15

One strength of the range is that it can be used in statistical analyses designed to test hypotheses about populations.

The formula is the formula for the .

What is the population standard deviation (σ) for this set of data? 2, 4, 1, 5, 3

is an example of a .

The formula is the formula for the .

As the size of a sample (N) increases, the difference between the value of the sample standard deviation (s) and the population standard deviation (σ) calculated for the same set of data ______.

What is the sum of squared scores for this set of data? 3, 6, 8, 9

What is the standard deviation (s) for this set of data? 24, 18, 21, 28

What is the sum of squared scores for this set of data? 1.52, 2.04, 2.36, 1.91

Which of these is based on ALL of the scores in a set of data?

For this set of data, is equal to ______. 17, 87, 101, 280, 680

For this set of data, is equal to ______. 9, 8, 10, 5, 5, 2, 3, 9, 6, 3

To overcome the effects of outliers on the range for a set of data, one could instead calculate the ______.

After grading an exam, an instructor believes the test was easier than expected; this is because ______.

What is the range for this set of data? 3.09, 2.62, 2.81, 3.17, 3.62, 3.35

The average squared deviation of a score from the mean is the ______.

Introduction to Statistics

Examining Data: Tables and Figures

Measures of Central Tendency

Normal Distributions

Probability and Hypothesis Testing

Testing One Sample Mean

Estimating the Mean of a Population

Testing the Difference Between Two Means

Errors in Hypothesis Testing, Statistical Power, and Effect Size

One-Way Analysis of Variance Anova

Two-Way Analysis of Variance Anova

Correlation

Linear Regression and Multiple Correlation

Chi-Square

Filters

Exam 4: Measures of Variability

A distribution of scores may have more than one ______.

What is the sum of squared scores for this set of data? 3.59, 3.02, 2.87, 3.16, 3.72

What is the standard deviation (s) for this set of data? 6, 13, 11, 9, 16

What is the population standard deviation (σ) for this set of data? 3.76, 4.12, 3.29, 2.84, 4.93, 2.15

One strength of the range is that it can be used in statistical analyses designed to test hypotheses about populations.

The formula is the ______ formula for the ______ .

What is the population standard deviation (σ) for this set of data? 2, 4, 1, 5, 3

______ is an example of a ______.

The formula is the ______ formula for the ______ .

As the size of a sample (N) increases, the difference between the value of the sample standard deviation (s) and the population standard deviation (σ) calculated for the same set of data ______.

What is the sum of squared scores for this set of data? 3, 6, 8, 9

What is the standard deviation (s) for this set of data? 24, 18, 21, 28

What is the sum of squared scores for this set of data? 1.52, 2.04, 2.36, 1.91

Which of these is based on ALL of the scores in a set of data?

For this set of data, is equal to ______. 17, 87, 101, 280, 680

For this set of data, is equal to ______. 9, 8, 10, 5, 5, 2, 3, 9, 6, 3

To overcome the effects of outliers on the range for a set of data, one could instead calculate the ______.

After grading an exam, an instructor believes the test was easier than expected; this is because ______.

What is the range for this set of data? 3.09, 2.62, 2.81, 3.17, 3.62, 3.35

The average squared deviation of a score from the mean is the ______.

Introduction to Statistics

Examining Data: Tables and Figures

Measures of Central Tendency

Normal Distributions

Probability and Hypothesis Testing

Testing One Sample Mean

Estimating the Mean of a Population

Testing the Difference Between Two Means

Errors in Hypothesis Testing, Statistical Power, and Effect Size

One-Way Analysis of Variance Anova

Two-Way Analysis of Variance Anova

Correlation

Linear Regression and Multiple Correlation

Chi-Square

Filters

The formula is the formula for the .

is an example of a .

The formula is the formula for the .