Question 1

____________________ statistics involves predicting the characteristics of a ____________________ based on the data from a _____________________.

Accepted Answer

A)  Inferential; sample; population 
B)  Descriptive; sample; population 
C)  Inferential; population; sample 
D)  Descriptive; population; sample 
A)  Inferential; sample; population 
B)  Descriptive; sample; population 
C)  Inferential; population; sample 
D)  Descriptive; population; sample

Question 2

In statistics, a population is made up of

Accepted Answer

A)  a subset of a larger group. 
B)  the entire world. 
C)  the individuals chosen to be in an experiment. 
D)  an entire group with something in common. 
A)  a subset of a larger group. 
B)  the entire world. 
C)  the individuals chosen to be in an experiment. 
D)  an entire group with something in common.

Question 3

Which type of research can demonstrate cause-and-effect relationship?

Accepted Answer

A)  correlation 
B)  experimentation 
C)  surveys 
D)  case studies 
A)  correlation 
B)  experimentation 
C)  surveys 
D)  case studies

Question 4

In nonexperimental research,

Accepted Answer

A)  variables are actively manipulated by the researcher. 
B)  conclusions can be drawn about cause-and-effect relationships. 
C)  scores are only observed without intervention. 
D)  correlational studies cannot be used. 
A)  variables are actively manipulated by the researcher. 
B)  conclusions can be drawn about cause-and-effect relationships. 
C)  scores are only observed without intervention. 
D)  correlational studies cannot be used.

Question 5

The number 47.8367 rounded to the nearest hundredth would be

Accepted Answer

A)  47.8 
B)  47.84 
C)  47.83 
D)  47.837 
A)  47.8 
B)  47.84 
C)  47.83 
D)  47.837

Question 6

In a study to determine the effect of room temperature on concentration, room temperature would be the

Accepted Answer

A)  independent variable. 
B)  dependent variable. 
C)  extraneous variable. 
D)  controlled variable. 
A)  independent variable. 
B)  dependent variable. 
C)  extraneous variable. 
D)  controlled variable.

Question 7

Eye color is an example of a(n)

Accepted Answer

A)  extraneous variable. 
B)  continuous variable. 
C)  qualitative variable. 
D)  quantitative variable. 
A)  extraneous variable. 
B)  continuous variable. 
C)  qualitative variable. 
D)  quantitative variable.

Question 8

In division, if the numerator and denominator have opposite signs,

Accepted Answer

A)  change the sign of the dividend (the number being divided). 
B)  change the sign of the divisor (the number used to divide). 
C)  the result will be negative. 
D)  the result will be positive. 
A)  change the sign of the dividend (the number being divided). 
B)  change the sign of the divisor (the number used to divide). 
C)  the result will be negative. 
D)  the result will be positive.

Question 9

Why are scales of measurement important in statistics?

Accepted Answer

Scales of measurement are impo

Question 10

We use _________________ to estimate parameters.

Accepted Answer

A)  populations 
B)  statistics 
C)  variables 
D)  constants 
A)  populations 
B)  statistics 
C)  variables 
D)  constants

Question 11

Extraneous variables should be

Accepted Answer

A)  applied only to the experimental group. 
B)  applied only to the control group. 
C)  maintained at the same level across all groups. 
D)  manipulated by the researcher. 
A)  applied only to the experimental group. 
B)  applied only to the control group. 
C)  maintained at the same level across all groups. 
D)  manipulated by the researcher.

Question 12

For each of the situations below, identify the independent variable and the dependent variable.
a. A study to determine the effect of humidity on running speed.
b. Students memorize a list of difficult vocabulary words while listening to jazz, classical music, or country and western music. Their recall of the words was then measured.
c. Research participants are asked to solve a jigsaw puzzle in rooms where the temperature is either cold, comfortable, or hot. The amount of time it takes to solve the puzzle is recorded.

Accepted Answer

Independent Variables and Depe

Question 13

Converting 18% into a proportion results in a value of ____________.

Accepted Answer

A)  .18 
B)  18.00 
C)  .0018 
D)  1.8 
A)  .18 
B)  18.00 
C)  .0018 
D)  1.8

Question 14

The lower limit of 3.1 is _____________.

Accepted Answer

A)  3.6 
B)  2.6 
C)  3.095 
D)  3.05 
A)  3.6 
B)  2.6 
C)  3.095 
D)  3.05

Question 15

Explain what is meant by inferential statistics using the concept of sampling error in your discussion.

Accepted Answer

Inferential statistics involves making p

Question 16

Changing a decimal to a percentage would be accomplished by ________________.

Accepted Answer

A)  multiplying by 100 
B)  moving the decimal place two places to the left 
C)  dividing by 100 
D)  dividing by N 
A)  multiplying by 100 
B)  moving the decimal place two places to the left 
C)  dividing by 100 
D)  dividing by N

Question 17

In an experiment, the group that is used as a baseline for comparison is called the ______________ group.

Accepted Answer

A)  control 
B)  experimental 
C)  random 
D)  extraneous 
A)  control 
B)  experimental 
C)  random 
D)  extraneous

Question 18

A study reports that income for males increases by 2% for every 4-inch increase in height. What type of research is involved in this study?

Accepted Answer

A)  longitudinal 
B)  case study 
C)  experimental 
D)  correlation 
A)  longitudinal 
B)  case study 
C)  experimental 
D)  correlation

Question 19

All of the following are discrete variables, except

Accepted Answer

A)  number of siblings. 
B)  gender. 
C)  academic major. 
D)  amount of time spent working out. 
A)  number of siblings. 
B)  gender. 
C)  academic major. 
D)  amount of time spent working out.

Question 20

A study reports that a newly developed non-opioid analgesic medication decreased the amount of pain experienced by people who suffer from migraine headaches. What type of research is involved in this study?

Accepted Answer

A)  experiment 
B)  correlation 
C)  longitudinal 
D)  case study 
A)  experiment 
B)  correlation 
C)  longitudinal 
D)  case study

statistics involves predicting the characteristics of a based on the data from a _.

In statistics, a population is made up of

Which type of research can demonstrate cause-and-effect relationship?

In nonexperimental research,

The number 47.8367 rounded to the nearest hundredth would be

In a study to determine the effect of room temperature on concentration, room temperature would be the

Eye color is an example of a(n)

In division, if the numerator and denominator have opposite signs,

Why are scales of measurement important in statistics?

We use _________________ to estimate parameters.

Extraneous variables should be

Converting 18% into a proportion results in a value of ____________.

The lower limit of 3.1 is _____________.

Explain what is meant by inferential statistics using the concept of sampling error in your discussion.

Changing a decimal to a percentage would be accomplished by ________________.

In an experiment, the group that is used as a baseline for comparison is called the ______________ group.

A study reports that income for males increases by 2% for every 4-inch increase in height. What type of research is involved in this study?

All of the following are discrete variables, except

A study reports that a newly developed non-opioid analgesic medication decreased the amount of pain experienced by people who suffer from migraine headaches. What type of research is involved in this study?

Organizing Data Using Tables and Graphs

Measures of Central Tendency

Measures of Variability

Z-Scores and Other Standard Scores

Probability and the Normal Distribution

Sampling Distribution of Means

Hypothesis Testing

One-Sample T-Test

Two-Sample T-Test: Independent Samples Design

Two-Sample T-Test: Related Samples Design

Confidence Interval Versus Point Estimation

One-Way Analysis of Variance

Factorial Analysis of Variance

Correlation and Regression

Chi-Square

Nonparametric Statistics for Ordinal Data

Filters

Exam 1: Introduction to Statistics

____________________ statistics involves predicting the characteristics of a ____________________ based on the data from a _____________________.

In statistics, a population is made up of

Which type of research can demonstrate cause-and-effect relationship?

In nonexperimental research,

The number 47.8367 rounded to the nearest hundredth would be

In a study to determine the effect of room temperature on concentration, room temperature would be the

Eye color is an example of a(n)

In division, if the numerator and denominator have opposite signs,

Why are scales of measurement important in statistics?

We use _________________ to estimate parameters.

Extraneous variables should be

Converting 18% into a proportion results in a value of ____________.

The lower limit of 3.1 is _____________.

Explain what is meant by inferential statistics using the concept of sampling error in your discussion.

Changing a decimal to a percentage would be accomplished by ________________.

In an experiment, the group that is used as a baseline for comparison is called the ______________ group.

A study reports that income for males increases by 2% for every 4-inch increase in height. What type of research is involved in this study?

All of the following are discrete variables, except

A study reports that a newly developed non-opioid analgesic medication decreased the amount of pain experienced by people who suffer from migraine headaches. What type of research is involved in this study?

Organizing Data Using Tables and Graphs

Measures of Central Tendency

Measures of Variability

Z-Scores and Other Standard Scores

Probability and the Normal Distribution

Sampling Distribution of Means

Hypothesis Testing

One-Sample T-Test

Two-Sample T-Test: Independent Samples Design

Two-Sample T-Test: Related Samples Design

Confidence Interval Versus Point Estimation

One-Way Analysis of Variance

Factorial Analysis of Variance

Correlation and Regression

Chi-Square

Nonparametric Statistics for Ordinal Data

Filters

statistics involves predicting the characteristics of a based on the data from a _.