Exam 1: Introduction to Statistics

Although a research study is typically conducted with a relatively small group of participants known as a ,most researchers hope to generalize their results to a much larger group known as a .

(Multiple Choice)

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Question 41

What is the value of Σ(X + 1)for the following scores? Scores: 1,0,1,4

(Multiple Choice)

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Question 42

In an experiment comparing two methods for teaching social skill training to children with autism,the independent variable is and the dependent variable is .

(Multiple Choice)

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Question 43

You are instructed to subtract four points from each score,square the resulting value,and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?

(Multiple Choice)

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Question 44

Calculate each value requested for the following set of scores.Scores: 5,2,4,2 a. ΣX - 2 b. Σ(X - 2) c. Σ(X - 2)2

(Short Answer)

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Question 45

The average verbal SAT score for the entire class of entering freshmen is 530.However,if you select a sample of 20 freshmen and compute their average verbal SAT score you probably will not get exactly 530.What statistical concept is used to explain the natural difference that exists between a sample mean and the corresponding population mean?

(Multiple Choice)

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Question 46

What additional information is obtained by measuring two individuals on an interval scale compared to an ordinal scale?

(Multiple Choice)

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Question 47

An operational definition identifies a set of operations for measuring an external behavior and then uses the resulting measurement as a definition of a hypothetical construct.

(True/False)

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Question 48

Define the concept of "sampling error." Note: Your definition should include the concepts of sample,population,statistic,and parameter.

(Essay)

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Question 49

The goal for an experiment is to demonstrate that changes in one variable are responsible for causing changes in a second variable.

(True/False)

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Question 50

What is the value of Σ(X - 2 )2 for the following scores? Scores: 2,3,5

(Multiple Choice)

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Question 51

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

(Multiple Choice)

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Question 52

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

(True/False)

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Question 53

Statistical methods that organize,summarize,or streamline data are called ____.

(Multiple Choice)

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Question 54

What is the value of Σ(X - 1)2 for the following scores? Scores: 1,2,1,4

(Multiple Choice)

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Question 55

If a variable can be divided into an infinite number of fractional parts,then it is a(n)____ variable.

(Multiple Choice)

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Question 56

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

(Multiple Choice)

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Question 57

The average score for a population is an example of a statistic.

(True/False)

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Question 58

Which description provides an example of a discrete variable?

(Multiple Choice)

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Question 59

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 ____.

(Multiple Choice)

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Question 60

Showing 41 - 60 of 76

Although a research study is typically conducted with a relatively small group of participants known as a ,most researchers hope to generalize their results to a much larger group known as a .

What is the value of Σ(X + 1)for the following scores? Scores: 1,0,1,4

In an experiment comparing two methods for teaching social skill training to children with autism,the independent variable is and the dependent variable is .

You are instructed to subtract four points from each score,square the resulting value,and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?

Calculate each value requested for the following set of scores.Scores: 5,2,4,2 a. ΣX - 2 b. Σ(X - 2) c. Σ(X - 2)2

What additional information is obtained by measuring two individuals on an interval scale compared to an ordinal scale?

An operational definition identifies a set of operations for measuring an external behavior and then uses the resulting measurement as a definition of a hypothetical construct.

Define the concept of "sampling error." Note: Your definition should include the concepts of sample,population,statistic,and parameter.

The goal for an experiment is to demonstrate that changes in one variable are responsible for causing changes in a second variable.

What is the value of Σ(X - 2 )2 for the following scores? Scores: 2,3,5

What is the first step to be performed in the following mathematical expression? (ΣX)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.

Statistical methods that organize,summarize,or streamline data are called ____.

What is the value of Σ(X - 1)2 for the following scores? Scores: 1,2,1,4

If a variable can be divided into an infinite number of fractional parts,then it is a(n)____ variable.

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

The average score for a population is an example of a statistic.

Which description provides an example of a discrete variable?

Frequency Distributions

Central Tendency

Variability

Z-Scores: Location of Scores and Standardized Distributions

Probability

Probability and Samples: 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 Analysis of Variance Anova

Two-Factor Analysis of Variance Independent Measures

Correlation

Introduction to Regression

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

The Binomial Test

Filters

Exam 1: Introduction to Statistics

Although a research study is typically conducted with a relatively small group of participants known as a ____,most researchers hope to generalize their results to a much larger group known as a ____.​

What is the value of Σ(X + 1)for the following scores?​ Scores: 1,0,1,4

In an experiment comparing two methods for teaching social skill training to children with autism,the independent variable is ____ and the dependent variable is ____.​

You are instructed to subtract four points from each score,square the resulting value,and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?​

Calculate each value requested for the following set of scores.Scores: 5,2,4,2​ a. ΣX - 2 b. Σ(X - 2) c. Σ(X - 2)2

What additional information is obtained by measuring two individuals on an interval scale compared to an ordinal scale?​

An operational definition identifies a set of operations for measuring an external behavior and then uses the resulting measurement as a definition of a hypothetical construct.​

Define the concept of "sampling error." Note: Your definition should include the concepts of sample,population,statistic,and parameter.​

The goal for an experiment is to demonstrate that changes in one variable are responsible for causing changes in a second variable.​

What is the value of Σ(X - 2 )2 for the following scores?​ Scores: 2,3,5

What is the first step to be performed in the following mathematical expression?​ (ΣX)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.​

Statistical methods that organize,summarize,or streamline data are called ____.​

What is the value of Σ(X - 1)2 for the following scores?​ Scores: 1,2,1,4

If a variable can be divided into an infinite number of fractional parts,then it is a(n)____ variable.​

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

The average score for a population is an example of a statistic.

Which description provides an example of a discrete variable?​

Frequency Distributions

Central Tendency

Variability

Z-Scores: Location of Scores and Standardized Distributions

Probability

Probability and Samples: 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 Analysis of Variance Anova

Two-Factor Analysis of Variance Independent Measures

Correlation

Introduction to Regression

The Chi-Square Statistic: Tests for Goodness of Fit and Independence

The Binomial Test

Filters

Although a research study is typically conducted with a relatively small group of participants known as a ,most researchers hope to generalize their results to a much larger group known as a .

What is the value of Σ(X + 1)for the following scores? Scores: 1,0,1,4

In an experiment comparing two methods for teaching social skill training to children with autism,the independent variable is and the dependent variable is .

You are instructed to subtract four points from each score,square the resulting value,and find the sum of the squared numbers.How would this set of instructions be expressed in summation notation?

Calculate each value requested for the following set of scores.Scores: 5,2,4,2 a. ΣX - 2 b. Σ(X - 2) c. Σ(X - 2)2

What additional information is obtained by measuring two individuals on an interval scale compared to an ordinal scale?

An operational definition identifies a set of operations for measuring an external behavior and then uses the resulting measurement as a definition of a hypothetical construct.

Define the concept of "sampling error." Note: Your definition should include the concepts of sample,population,statistic,and parameter.

The goal for an experiment is to demonstrate that changes in one variable are responsible for causing changes in a second variable.

What is the value of Σ(X - 2 )2 for the following scores? Scores: 2,3,5

What is the first step to be performed in the following mathematical expression? (ΣX)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.

Statistical methods that organize,summarize,or streamline data are called ____.

What is the value of Σ(X - 1)2 for the following scores? Scores: 1,2,1,4

If a variable can be divided into an infinite number of fractional parts,then it is a(n)____ variable.

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

Which description provides an example of a discrete variable?