Question 1

The probability that an individual is satisfied with his marriage (event A)and satisfied with his job (event B)is an example of
A _____.

Accepted Answer

A) joint probability 
B) conditional probability 
C) marginal probability 
D) mutually exclusive probability 
A) joint probability 
B) conditional probability 
C) marginal probability 
D) mutually exclusive probability

Question 2

When the alpha level is .05,a result is defined as non-chance if the probability of obtaining that result,assuming the null hypothesis is true,is:

Accepted Answer

A) greater than .05 
B) equal to .05 
C) less than .05 
D) none of these 
A) greater than .05 
B) equal to .05 
C) less than .05 
D) none of these

Question 3

A counting rule that involves a set of objects of events in an ordered sequence is called a ____.

Accepted Answer

A) combination 
B) conditional rule 
C) binomial 
D) permutation 
A) combination 
B) conditional rule 
C) binomial 
D) permutation

Question 4

In a binomial probability calculation,there are ____ possible outcomes.

Accepted Answer

A) many 
B) N! 
C) two 
D) N!/r! 
A) many 
B) N! 
C) two 
D) N!/r!

Question 5

The process of randomly selecting a case,taking some measurement of interest,and then returning the case to the population is called:

Accepted Answer

A) sampling without replacement 
B) sampling with replacement 
C) sampling without error 
D) sampling with error 
A) sampling without replacement 
B) sampling with replacement 
C) sampling without error 
D) sampling with error

Question 6

In the case of sampling _____,the outcome of the first random selection in no way affects the outcome of the second random selection.

Accepted Answer

A) without replacement 
B) with replacement 
C) with correction for continuity 
D) without error 
A) without replacement 
B) with replacement 
C) with correction for continuity 
D) without error

Question 7

In probability theory,when two outcomes cannot occur simultaneously they are ____.

Accepted Answer

A) conditional probabilities 
B) mutually exclusive 
C) mutually exhaustive 
D) exhaustive 
A) conditional probabilities 
B) mutually exclusive 
C) mutually exhaustive 
D) exhaustive

Question 8

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal 1.00.

Accepted Answer

A) True 
 B)False

Question 9

You have conducted a study using a therapy technique to reduce depression.Out of 10 clients,you found a reduction for 6 of them.Can we conclude that the therapy technique works?

Accepted Answer

A) This cannot be determined until a z-score is calculated and compared with an alpha level criterion. 
B) Yes,because 6 is more than chance. 
C) The technique will only work if the calculated mean is at least 6 and the standard deviation is at least 5. 
D) This cannot be determined until the correction for continuity is applied to the data. 
A) This cannot be determined until a z-score is calculated and compared with an alpha level criterion. 
B) Yes,because 6 is more than chance. 
C) The technique will only work if the calculated mean is at least 6 and the standard deviation is at least 5. 
D) This cannot be determined until the correction for continuity is applied to the data.

Question 10

A permutation of a set of objects or events is a sequence in which the internal ordering of elements is irrelevant.

Accepted Answer

A) True 
 B)False

Question 11

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal:

Accepted Answer

A) 100 
B) .01 
C) .10 
D) 1.0 
A) 100 
B) .01 
C) .10 
D) 1.0

Question 12

Let event A be "satisfied with one's marriage" and event B be "satisfied with one's job.The probability that someone is satisfied with both his marriage and his job is equal to:

Accepted Answer

A) p(A|
B)  
B) p(A,
B)  
C) p(
B) p(A|
B)  
D) b and c 
A) p(A|
B)  
B) p(A,
B)  
C) p(
B) p(A|
B)  
D) b and c

Question 13

Two outcomes are said to be _____ if it is impossible for both outcomes to occur simultaneously for a given individual.

Accepted Answer

A) mutually exclusive 
B) mutually conditional 
C) mutually distributed 
D) mutually impossible 
A) mutually exclusive 
B) mutually conditional 
C) mutually distributed 
D) mutually impossible

Question 14

A marketing researcher at a computer company did a study examining user satisfaction with two operating systems.A total of 300 users were surveyed on the type of operating system used and their satisfaction with it.Use the following data set to answer questions 6-14:  
What is the probability that a person uses system 10?

Accepted Answer

A) .813 
B) .187 
C) .740 
D) .260 
A) .813 
B) .187 
C) .740 
D) .260

Question 15

A sample of 500 people aged 30 - 40 years old were interviewed to study the relationship between whether a person graduated from college or only high school and whether s/he changed jobs in the last 5 years.The results are found in the contingency table below.  
Answers below have been rounded to two decimal places.
What is the probability that an individual has changed jobs?

Accepted Answer

A) .23 
B) .49 
C) .51 
D) .64 
A) .23 
B) .49 
C) .51 
D) .64

Question 16

If a researcher does the following calculation, (4)(3)(2)(1)= 24,this researcher is calculating the ____________________ of the number 4.

Accepted Answer

The answer of If a researcher does the following calculation,...

Question 17

If p (A | B)= 0,then it follows that A and B must be

Accepted Answer

A) mutually exclusive 
B) independent 
C) factorial 
D) both a and b 
A) mutually exclusive 
B) independent 
C) factorial 
D) both a and b

Question 18

If the observed result of a study is similar enough to the outcome stated in the null hypothesis such that it can reasonably be attributed to chance,we will _____ the null hypothesis.

Accepted Answer

A) accept 
B) reject 
C) fail to reject 
D) revise 
A) accept 
B) reject 
C) fail to reject 
D) revise

Question 19

Researchers in health and advertising are interested in looking at how alternative forms of alcohol advertising are related to actual alcohol use among youth.Imagine you have conducted a study looking at the relationship between owning an item that advertises alcohol (such as a hat,t-shirt or cup with an alcohol logo on it)and having tried alcohol among a group of 12-year-olds.You observe 500 cases total.Of those 500 cases,100 have tried alcohol.For the 100 cases who have tried alcohol,32 own an item that advertises alcohol.You wish to address the following research question: Is the observation that 32 out of 100 youths who have tried alcohol own an advertising item sufficient evidence to say that these two factors are related? Calculate the standard deviation of the binomial distribution.Assume that q = 1p.

Accepted Answer

The answer of Researchers in health and advertising are interested...

Question 20

If you have 5 questionnaires you want to hand out to a group of people,how many combinations of these 5 questionnaires,taking 3 at a time,are there?

Accepted Answer

A) 5 
B) 20 
C) 9 
D) 10 
A) 5 
B) 20 
C) 9 
D) 10

The probability that an individual is satisfied with his marriage (event A)and satisfied with his job (event B)is an example of A _____.

When the alpha level is .05,a result is defined as non-chance if the probability of obtaining that result,assuming the null hypothesis is true,is:

A counting rule that involves a set of objects of events in an ordered sequence is called a ____.

In a binomial probability calculation,there are ____ possible outcomes.

The process of randomly selecting a case,taking some measurement of interest,and then returning the case to the population is called:

In the case of sampling _____,the outcome of the first random selection in no way affects the outcome of the second random selection.

In probability theory,when two outcomes cannot occur simultaneously they are ____.

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal 1.00.

You have conducted a study using a therapy technique to reduce depression.Out of 10 clients,you found a reduction for 6 of them.Can we conclude that the therapy technique works?

A permutation of a set of objects or events is a sequence in which the internal ordering of elements is irrelevant.

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal:

Let event A be "satisfied with one's marriage" and event B be "satisfied with one's job.The probability that someone is satisfied with both his marriage and his job is equal to:

Two outcomes are said to be _____ if it is impossible for both outcomes to occur simultaneously for a given individual.

If a researcher does the following calculation, (4)(3)(2)(1)= 24,this researcher is calculating the ____________________ of the number 4.

If p (A | B)= 0,then it follows that A and B must be

If the observed result of a study is similar enough to the outcome stated in the null hypothesis such that it can reasonably be attributed to chance,we will _____ the null hypothesis.

If you have 5 questionnaires you want to hand out to a group of people,how many combinations of these 5 questionnaires,taking 3 at a time,are there?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 6: Probability

The probability that an individual is satisfied with his marriage (event A)and satisfied with his job (event B)is an example of A _____.

When the alpha level is .05,a result is defined as non-chance if the probability of obtaining that result,assuming the null hypothesis is true,is:

A counting rule that involves a set of objects of events in an ordered sequence is called a ____.

In a binomial probability calculation,there are ____ possible outcomes.

The process of randomly selecting a case,taking some measurement of interest,and then returning the case to the population is called:

In the case of sampling _____,the outcome of the first random selection in no way affects the outcome of the second random selection.

In probability theory,when two outcomes cannot occur simultaneously they are ____.

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal 1.00.

You have conducted a study using a therapy technique to reduce depression.Out of 10 clients,you found a reduction for 6 of them.Can we conclude that the therapy technique works?

A permutation of a set of objects or events is a sequence in which the internal ordering of elements is irrelevant.

Given a set of outcomes that are mutually exclusive and exhaustive,the sum of the probabilities of the outcomes will always equal:

Let event A be "satisfied with one's marriage" and event B be "satisfied with one's job.The probability that someone is satisfied with both his marriage and his job is equal to:

Two outcomes are said to be _____ if it is impossible for both outcomes to occur simultaneously for a given individual.

If a researcher does the following calculation, (4)(3)(2)(1)= 24,this researcher is calculating the ____________________ of the number 4.

If p (A | B)= 0,then it follows that A and B must be

If the observed result of a study is similar enough to the outcome stated in the null hypothesis such that it can reasonably be attributed to chance,we will _____ the null hypothesis.

If you have 5 questionnaires you want to hand out to a group of people,how many combinations of these 5 questionnaires,taking 3 at a time,are there?

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Percentiles percentile Ranks standard Scores and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Measures of Central Tendency and Variability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Independent Groups T -Test

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters