Question 1

Adding (-12) + (-8) + 16 + (-4) results in what value?

Accepted Answer

A)  8 
B)  -8 
C)  16 
D)  -16 
A)  8 
B)  -8 
C)  16 
D)  -16

Question 2

What operation is completed first when applying the order of mathematical operations?

Accepted Answer

A)  exponents 
B)  parentheses 
C)  addition 
D)  division 
A)  exponents 
B)  parentheses 
C)  addition 
D)  division

Question 3

Scales of measurement

Accepted Answer

A)  help determine which statistical procedures are appropriate. 
B)  can only be determined after the research results have been obtained. 
C)  allow researchers to use random assignment of participants to different groups. 
D)  are used to maintain extraneous variables at the same level across different groups. 
A)  help determine which statistical procedures are appropriate. 
B)  can only be determined after the research results have been obtained. 
C)  allow researchers to use random assignment of participants to different groups. 
D)  are used to maintain extraneous variables at the same level across different groups.

Question 4

Sample data cannot be expected to predict population parameters with perfect accuracy due to

Accepted Answer

A)  interval error. 
B)  statistical error. 
C)  quantitative error. 
D)  sampling error. 
A)  interval error. 
B)  statistical error. 
C)  quantitative error. 
D)  sampling error.

Question 5

Statistics are to parameters as ________________ are to __________________.

Accepted Answer

A)  dependent variables; independent variables 
B)  samples; populations 
C)  populations; samples 
D)  independent variables; dependent variables 
A)  dependent variables; independent variables 
B)  samples; populations 
C)  populations; samples 
D)  independent variables; dependent variables

Question 6

Random sampling

Accepted Answer

A)  is biased sampling. 
B)  helps ensure that a sample is representative of a population. 
C)  is based on trial and error. 
D)  helps ensure that only the most experienced in the population participate so that a positive outcome is more likely. 
A)  is biased sampling. 
B)  helps ensure that a sample is representative of a population. 
C)  is based on trial and error. 
D)  helps ensure that only the most experienced in the population participate so that a positive outcome is more likely.

Question 7

Calculate ∑X²for the following set of scores: 6, 4, 3, 2. The answer is ______________.

Accepted Answer

A)  15 
B)  65 
C)  225 
D)  30 
A)  15 
B)  65 
C)  225 
D)  30

Question 8

Determine the lower and upper limits for the following values:
a. 8.7 pounds, a baby's weight: __________________and __________________.
b. 6.38 seconds, length of time to respond to a question: __________________ and __________________.
c. 2100 calories, daily caloric intake: __________________and __________________.
d. 52.982 mph, wind speed during a storm: __________________and __________________.

Accepted Answer

Lower and Upper Limits
a. 8.7 - .05 = 8.

Question 9

The _____________ variable is what is measured in an experiment to see if it was affected by the ______________ variable.

Accepted Answer

A)  independent; extraneous 
B)  independent; dependent 
C)  extraneous; independent 
D)  dependent; independent 
A)  independent; extraneous 
B)  independent; dependent 
C)  extraneous; independent 
D)  dependent; independent

Question 10

Identify three reasons why studying statistics is important.

Accepted Answer

• Statistical procedures are used to adv

Question 11

One of the features of the _______________ scale of measurement is an arbitrary zero point.

Accepted Answer

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

Question 12

I like ice cream. My favorite is chocolate. If I can't have chocolate, I'll eat vanilla, If there's no vanilla, I'll take strawberry. My preference for ice cream flavors is an example of the ________________ scale of measurement.

Accepted Answer

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

Question 13

In a study to determine the effect of caffeine on memory, memory 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 14

What procedure is used in an experiment that involves all participants having an equal chance of being assigned to any one of the groups?

Accepted Answer

A)  controlled assignment 
B)  experimental assignment 
C)  random assignment 
D)  equal assignment 
A)  controlled assignment 
B)  experimental assignment 
C)  random assignment 
D)  equal assignment

Question 15

The upper limit of 2.67 is _________________.

Accepted Answer

A)  2.6705 
B)  2.72 
C)  2.665 
D)  2.675 
A)  2.6705 
B)  2.72 
C)  2.665 
D)  2.675

Question 16

Indicate whether the hypothetical studies below represent correlation or experimental research. 
a. A study to determine the effect of exercise on blood pressure.
b. A study shows that students who take more courses in psychology tend to have higher scores on self-esteem.
c. Studies show that as cigarette smoking increases, life expectancy decreases.
d. A study shows that a new spice increased the ability of rats to find their way around a maze.

Accepted Answer

Correlation or Exper

Question 17

All of the following are continuous variables, except

Accepted Answer

A)  academic major. 
B)  the speed of a runner. 
C)  the weight of a watermelon. 
D)  distance traveled. 
A)  academic major. 
B)  the speed of a runner. 
C)  the weight of a watermelon. 
D)  distance traveled.

Question 18

Identify the following as either continuous or discrete variables:
a. Depth of water in a swimming pool __________________.
b. Number of students enrolled in a class __________________.
c. Volume of water in a jug __________________.
d. How many traffic accidents there were in a given year __________________.
e. A person's age __________________.
f. Number of home runs __________________.

Accepted Answer

Continuous or Discrete Variabl

Question 19

Identify the scale of measurement for the following variables:
a. High school ranking __________________.
b. Amount of time to complete a test __________________.
c. Red, blue, orange, green __________________.
d. 10° F., 20° F., 30° F., 40° F __________________.

Accepted Answer

4. Scales of Measure

Question 20

In statistics, a sample is made up of

Accepted Answer

A)  a subset of a larger group. 
B)  the entire world. 
C)  the citizens of a specific location. 
D)  an entire group with something in common. 
A)  a subset of a larger group. 
B)  the entire world. 
C)  the citizens of a specific location. 
D)  an entire group with something in common.

Adding (-12) + (-8) + 16 + (-4) results in what value?

What operation is completed first when applying the order of mathematical operations?

Scales of measurement

Sample data cannot be expected to predict population parameters with perfect accuracy due to

Statistics are to parameters as are to __.

Random sampling

Calculate ∑X²for the following set of scores: 6, 4, 3, 2. The answer is ______________.

Determine the lower and upper limits for the following values: a. 8.7 pounds, a baby's weight: and . b. 6.38 seconds, length of time to respond to a question: and . c. 2100 calories, daily caloric intake: and . d. 52.982 mph, wind speed during a storm: and .

The _ variable is what is measured in an experiment to see if it was affected by the __ variable.

Identify three reasons why studying statistics is important.

One of the features of the _______________ scale of measurement is an arbitrary zero point.

I like ice cream. My favorite is chocolate. If I can't have chocolate, I'll eat vanilla, If there's no vanilla, I'll take strawberry. My preference for ice cream flavors is an example of the ________________ scale of measurement.

In a study to determine the effect of caffeine on memory, memory would be the

What procedure is used in an experiment that involves all participants having an equal chance of being assigned to any one of the groups?

The upper limit of 2.67 is _________________.

All of the following are continuous variables, except

Identify the following as either continuous or discrete variables: a. Depth of water in a swimming pool . b. Number of students enrolled in a class . c. Volume of water in a jug . d. How many traffic accidents there were in a given year . e. A person's age . f. Number of home runs .

Identify the scale of measurement for the following variables: a. High school ranking . b. Amount of time to complete a test . c. Red, blue, orange, green . d. 10° F., 20° F., 30° F., 40° F .

In statistics, a sample is made up of

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

Adding (-12) + (-8) + 16 + (-4) results in what value?

What operation is completed first when applying the order of mathematical operations?

Scales of measurement

Sample data cannot be expected to predict population parameters with perfect accuracy due to

Statistics are to parameters as ________________ are to __________________.

Random sampling

Calculate ∑X²for the following set of scores: 6, 4, 3, 2. The answer is ______________.

The _____________ variable is what is measured in an experiment to see if it was affected by the ______________ variable.

Identify three reasons why studying statistics is important.

One of the features of the _______________ scale of measurement is an arbitrary zero point.

I like ice cream. My favorite is chocolate. If I can't have chocolate, I'll eat vanilla, If there's no vanilla, I'll take strawberry. My preference for ice cream flavors is an example of the ________________ scale of measurement.

In a study to determine the effect of caffeine on memory, memory would be the

What procedure is used in an experiment that involves all participants having an equal chance of being assigned to any one of the groups?

The upper limit of 2.67 is _________________.

All of the following are continuous variables, except

Identify the scale of measurement for the following variables: a. High school ranking __________________. b. Amount of time to complete a test __________________. c. Red, blue, orange, green __________________. d. 10° F., 20° F., 30° F., 40° F __________________.

In statistics, a sample is made up of

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 are to parameters as are to __.

The _ variable is what is measured in an experiment to see if it was affected by the __ variable.

Identify the scale of measurement for the following variables: a. High school ranking . b. Amount of time to complete a test . c. Red, blue, orange, green . d. 10° F., 20° F., 30° F., 40° F .