Question 1

A data set is described as consisting of n = 15 scores.Based on the notation being used, the data set is a sample.

Accepted Answer

A) True 
 B)False

Question 2

If a researcher measures two individuals on an ordinal scale, then it is impossible to determine how much difference exists between the two people.

Accepted Answer

A) True 
 B)False

Question 3

After measuring two individuals, a researcher can say that Tom's score is 4 points higher than Bill's.The measurements must come from a(n) _______ scale.

Accepted Answer

A) nominal 
B) ordinal 
C) interval 
D) interval or ratio 
A) nominal 
B) ordinal 
C) interval 
D) interval or ratio

Question 4

The participants in a research study are classified as high, medium, or low in self-esteem.This classification involves measurement on a nominal scale.

Accepted Answer

A) True 
 B)False

Question 5

What is the final step to be performed when computing Σ(X - 2)2?

Accepted Answer

A) square each value 
B) subtract 2 points from each score 
C) sum the squared values 
D) subtract 22 from each X2 value 
A) square each value 
B) subtract 2 points from each score 
C) sum the squared values 
D) subtract 22 from each X2 value

Question 6

What is the value of Σ(X - 1)2 for the following scores?

Accepted Answer

A) 10 
B) 16 Scores: 1, 2, 1, 4 
C) 36 
D) 49 
A) 10 
B) 16 Scores: 1, 2, 1, 4 
C) 36 
D) 49

Question 7

What is the value of (ΣX)2 for the following scores? Scores: 1, 5, 2

Accepted Answer

A) 10 
B) 16 
C) 30 
D) 64 
A) 10 
B) 16 
C) 30 
D) 64

Question 8

A researcher is interested in the eating behavior of rats and selects a group of 25 rats to be tested in a research study.The group of 25 rats is an example of a ______.

Accepted Answer

A) sample 
B) statistic 
C) population 
D) parameter 
A) sample 
B) statistic 
C) population 
D) parameter

Question 9

What is the final step to be performed in the following mathematical expression? (ΣX)2?

Accepted Answer

A) Square each score. 
B) Add the scores. 
C) Add the squared scores. 
D) Square the sum of the scores. 
A) Square each score. 
B) Add the scores. 
C) Add the squared scores. 
D) Square the sum of the scores.

Question 10

A researcher uses an anonymous survey to investigate the study habits of American college students.Based on the set of 56 surveys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class.For this study, the average of 4.1 hours is an example of a(n) _______.

Accepted Answer

A) parameter 
B) statistic 
C) population 
D) sample 
A) parameter 
B) statistic 
C) population 
D) sample

Question 11

What is the value of (ΣX)2 for the following scores?

Accepted Answer

A) 14 
B) 21 Scores: 1, 0, 2, 4 
C) 28 
D) 49 
A) 14 
B) 21 Scores: 1, 0, 2, 4 
C) 28 
D) 49

Question 12

For the following scores, ΣX2 = 49.Scores: 1, 4, 2, 0

Accepted Answer

A) True 
 B)False

Question 13

If it is impossible to divide the existing categories of a variable, then it is an example of a _____ variable.

Accepted Answer

A) independent 
B) dependent 
C) discrete 
D) continuous 
A) independent 
B) dependent 
C) discrete 
D) continuous

Question 14

In an experimental study

Accepted Answer

A) 1 variable is measured and 2 groups are compared 
B) 2 variables are measured and 2 groups are compared 
C) 1 variable is measured and there is only 1 group of participants 
D) 2 variables are measured and there is only 1 group of participants 
A) 1 variable is measured and 2 groups are compared 
B) 2 variables are measured and 2 groups are compared 
C) 1 variable is measured and there is only 1 group of participants 
D) 2 variables are measured and there is only 1 group of participants

Question 15

A researcher uses an anonymous survey to investigate the study habits of American college students.Based on the set of 56 surveys that were completed and returned, the researcher finds that these students spend an average of 4.1 hours each week working on course material outside of class.For this study, the set of 56 students who returned surveys is an example of a(n) _______.

Accepted Answer

A) parameter 
B) statistic 
C) population 
D) sample 
A) parameter 
B) statistic 
C) population 
D) sample

Question 16

For the following scores, Σ(X + 1)2 = 81.Scores: 1, 3, 0, 1

Accepted Answer

A) True 
 B)False

Question 17

An experimental research study typically involves measuring two scores for each individual in one group of participants.

Accepted Answer

A) True 
 B)False

Question 18

For the following scores, $\Sigma$X2 = ($\Sigma$X)2.Scores: 1, 1, 1, 1

Accepted Answer

A) True 
 B)False

Question 19

The first step in computing Σ(X + 1), is to add 1 point to each score.

Accepted Answer

A) True 
 B)False

Question 20

A researcher is curious about the average monthly cell phone bill for high school students in the state of Florida.If this average could be obtained, it would be an example of a ______.

Accepted Answer

A) sample 
B) statistic 
C) population 
D) parameter 
A) sample 
B) statistic 
C) population 
D) parameter

A data set is described as consisting of n = 15 scores.Based on the notation being used, the data set is a sample.

If a researcher measures two individuals on an ordinal scale, then it is impossible to determine how much difference exists between the two people.

After measuring two individuals, a researcher can say that Tom's score is 4 points higher than Bill's.The measurements must come from a(n) _______ scale.

The participants in a research study are classified as high, medium, or low in self-esteem.This classification involves measurement on a nominal scale.

What is the final step to be performed when computing Σ(X - 2)²?

What is the value of Σ(X - 1)² for the following scores?

What is the value of (ΣX)² for the following scores? Scores: 1, 5, 2

A researcher is interested in the eating behavior of rats and selects a group of 25 rats to be tested in a research study.The group of 25 rats is an example of a ______.

What is the final step to be performed in the following mathematical expression? (ΣX)²?

What is the value of (ΣX)² for the following scores?

For the following scores, ΣX² = 49.Scores: 1, 4, 2, 0

If it is impossible to divide the existing categories of a variable, then it is an example of a _____ variable.

In an experimental study

For the following scores, Σ(X + 1)² = 81.Scores: 1, 3, 0, 1

An experimental research study typically involves measuring two scores for each individual in one group of participants.

For the following scores, $\Sigma$ X² = ( $\Sigma$ X)².Scores: 1, 1, 1, 1

The first step in computing Σ(X + 1), is to add 1 point to each score.

A researcher is curious about the average monthly cell phone bill for high school students in the state of Florida.If this average could be obtained, it would be an example of a ______.

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

Exam 1: Introduction to Statistics

A data set is described as consisting of n = 15 scores.Based on the notation being used, the data set is a sample.

If a researcher measures two individuals on an ordinal scale, then it is impossible to determine how much difference exists between the two people.

After measuring two individuals, a researcher can say that Tom's score is 4 points higher than Bill's.The measurements must come from a(n) _______ scale.

The participants in a research study are classified as high, medium, or low in self-esteem.This classification involves measurement on a nominal scale.

What is the final step to be performed when computing Σ(X - 2)2?

What is the value of Σ(X - 1)2 for the following scores?

What is the value of (ΣX)2 for the following scores? Scores: 1, 5, 2

A researcher is interested in the eating behavior of rats and selects a group of 25 rats to be tested in a research study.The group of 25 rats is an example of a ______.

What is the final step to be performed in the following mathematical expression? (ΣX)2?

What is the value of (ΣX)2 for the following scores?

For the following scores, ΣX2 = 49.Scores: 1, 4, 2, 0

If it is impossible to divide the existing categories of a variable, then it is an example of a _____ variable.

In an experimental study

For the following scores, Σ(X + 1)2 = 81.Scores: 1, 3, 0, 1

An experimental research study typically involves measuring two scores for each individual in one group of participants.

For the following scores, Σ\SigmaΣ X2 = ( Σ\SigmaΣ X)2.Scores: 1, 1, 1, 1

The first step in computing Σ(X + 1), is to add 1 point to each score.

A researcher is curious about the average monthly cell phone bill for high school students in the state of Florida.If this average could be obtained, it would be an example of a ______.

Frequency Distributions

Central Tendency

Variability

Z-Scores

Probability

The Distribution of Sample Means

Introduction to Hypothesis Testing

Introduction to the T Statistic

The T Test for Two Independent Samples

The T Test for Two Related Samples

Introduction to Analysis of Variance

Repeated-Measures Anova

Two-Factor Analysis of Variance

Correlation

Introduction to Regression

Chi-Square Tests

The Binomial Test

Choosing the Right Statistics

Filters

What is the final step to be performed when computing Σ(X - 2)²?

What is the value of Σ(X - 1)² for the following scores?

What is the value of (ΣX)² for the following scores? Scores: 1, 5, 2

What is the final step to be performed in the following mathematical expression? (ΣX)²?

What is the value of (ΣX)² for the following scores?

For the following scores, ΣX² = 49.Scores: 1, 4, 2, 0

For the following scores, Σ(X + 1)² = 81.Scores: 1, 3, 0, 1

For the following scores, $\Sigma$ X² = ( $\Sigma$ X)².Scores: 1, 1, 1, 1