Question 1

The t-test is strictly appropriate for tests involving sample sizes larger than 30 with known standard deviations.

Accepted Answer

A) True 
 B)False

Question 2

When the probability of a Type II error is ______ , the probability of a Type I error is _____.

Accepted Answer

A)  reduced, increased 
B)  reduced; reduced 
C)  increased; increased 
D)  none of these choices 
A)  reduced, increased 
B)  reduced; reduced 
C)  increased; increased 
D)  none of these choices

Question 3

A statistical test's significance level or p-value becomes a key indicator of whether or not a hypothesis can be supported.

Accepted Answer

A) True 
 B)False

Question 4

The two major groupings of statistical procedures are parametric statistics and nonparametric statistics.

Accepted Answer

A) True 
 B)False

Question 5

The logic behind the chi-square test is to compare the observed frequencies with the expected frequencies in the data set.

Accepted Answer

A) True 
 B)False

Question 6

The error caused by rejecting the null hypothesis when it is, in fact, true is called a _____.

Accepted Answer

A)  Type II error 
B)  confidence level error 
C)  confidence interval error 
D)  Type I error 
A)  Type II error 
B)  confidence level error 
C)  confidence interval error 
D)  Type I error

Question 7

Laura has a frequency table with the number of stores in three different categories: stand-alone, shopping center, and mall locations. Which statistical test is appropriate for testing hypothesizes she might have regarding these frequencies?

Accepted Answer

A)  b test 
B)  c2 test 
C)  a test 
D)  g test 
A)  b test 
B)  c2 test 
C)  a test 
D)  g test

Question 8

The number of observations minus the number of constraints or assumptions needed to calculate a statistical term is called the _____.

Accepted Answer

A)  statistical power 
B)  t-level 
C)  degrees of freedom 
D)  significance level 
A)  statistical power 
B)  t-level 
C)  degrees of freedom 
D)  significance level

Question 9

The c2 distribution is a single probability curve.

Accepted Answer

A) True 
 B)False

Question 10

In hypothesis testing, the symbol typically used to specify the significance level of the test is b.

Accepted Answer

A) True 
 B)False

Question 11

A researcher is testing a hypothesis and is examining the data to determine whether or not the observed relationship between a salesperson's age and sales are significantly related. Which of the following will he use to determine the significance level of the results?

Accepted Answer

A)  c 
B)  e 
C)  y-value 
D)  p-value 
A)  c 
B)  e 
C)  y-value 
D)  p-value

Question 12

When a researcher sets an acceptable significance level a priori (a), he or she is determining how much tolerance he or she has for which type of error?

Accepted Answer

A)  Type I 
B)  Type II 
C)  Type A 
D)  Type B 
A)  Type I 
B)  Type II 
C)  Type A 
D)  Type B

Question 13

Which of the following represents how well some computed table or matrix of values matches some population or predetermined table or matrix of the same size?

Accepted Answer

A)  statistical power 
B)  Z-value 
C)  t-value 
D)  goodness-of-fit (GOF) 
A)  statistical power 
B)  Z-value 
C)  t-value 
D)  goodness-of-fit (GOF)

Question 14

Which of the following represents the acceptable Type I error?

Accepted Answer

A)  t-value 
B)  c2 
C)  degrees of freedom 
D)  significance level 
A)  t-value 
B)  c2 
C)  degrees of freedom 
D)  significance level

Question 15

Which type of t-test is appropriate to test the following hypothesis? H: The number of employees who commute to work is greater than ten.

Accepted Answer

A)  Type I 
B)  Type II 
C)  one-tailed 
D)  two-tailed 
A)  Type I 
B)  Type II 
C)  one-tailed 
D)  two-tailed

Question 16

The opposite of the null hypothesis is called the ______ hypothesis.

Accepted Answer

A)  pure 
B)  alpha 
C)  alternative 
D)  secondary 
A)  pure 
B)  alpha 
C)  alternative 
D)  secondary

Question 17

The type of statistical analysis that deals with a hypothesis about a single variable (e.g. market share) is called ______ statistical analysis.

Accepted Answer

The answer of The type of statistical analysis that deals...

Question 18

Degrees of freedom are determined by the number of distinct calculations that are possible given a set of information.

Accepted Answer

A) True 
 B)False

Question 19

Which type of error occurs when the researcher concludes a relationship exists when in fact one does not exist?

Accepted Answer

A)  Type I 
B)  Type II 
C)  Type A 
D)  Type B 
A)  Type I 
B)  Type II 
C)  Type A 
D)  Type B

Question 20

The termp-value stands for power-value.

Accepted Answer

A) True 
 B)False

Exam 21: Univariate Statistical Analysis

The t-test is strictly appropriate for tests involving sample sizes larger than 30 with known standard deviations.

When the probability of a Type II error is ______ , the probability of a Type I error is _____.

A statistical test's significance level or p-value becomes a key indicator of whether or not a hypothesis can be supported.

The two major groupings of statistical procedures are parametric statistics and nonparametric statistics.

The logic behind the chi-square test is to compare the observed frequencies with the expected frequencies in the data set.

The error caused by rejecting the null hypothesis when it is, in fact, true is called a _____.

Laura has a frequency table with the number of stores in three different categories: stand-alone, shopping center, and mall locations. Which statistical test is appropriate for testing hypothesizes she might have regarding these frequencies?

The number of observations minus the number of constraints or assumptions needed to calculate a statistical term is called the _____.

The c2 distribution is a single probability curve.

In hypothesis testing, the symbol typically used to specify the significance level of the test is b.

A researcher is testing a hypothesis and is examining the data to determine whether or not the observed relationship between a salesperson's age and sales are significantly related. Which of the following will he use to determine the significance level of the results?

When a researcher sets an acceptable significance level a priori (a), he or she is determining how much tolerance he or she has for which type of error?

Which of the following represents how well some computed table or matrix of values matches some population or predetermined table or matrix of the same size?

Which of the following represents the acceptable Type I error?

Which type of t-test is appropriate to test the following hypothesis? H: The number of employees who commute to work is greater than ten.

The opposite of the null hypothesis is called the ______ hypothesis.

The type of statistical analysis that deals with a hypothesis about a single variable (e.g. market share) is called ______ statistical analysis.

Degrees of freedom are determined by the number of distinct calculations that are possible given a set of information.

Which type of error occurs when the researcher concludes a relationship exists when in fact one does not exist?

The termp-value stands for power-value.

The Role of Business Research

Information Systems and Knowledge Management

Theory Building

The Business Research Process

The Human Side of Business Research: Organizational and Ethical Issues

Problem Definition: the Foundation of Business Research

Qualitative Research

Secondary Data Research in a Digital Age

Survey Research: an Overview

Survey Research: Communicating With Respondents

Observation

Experimental Research

Measurement

Attitude Measurement

Questionnaire Design

Sampling Designs and Sampling Procedures

Determination of Sample Size: a Review of Statistical Theory

Fieldwork

Editing and Coding: Transforming Raw Data Into Information

Basic Data Analysis: Descriptive Statistics

Bivariate Statistical Analysis: Differences Between Two Variables

Bivariate Statistical Analysis: Measures of Association

Multivariate Statistical Analysis

Communicating Research Results: Report Generation, Oral Presentation, and Follow-Up

Filters

When the probability of a Type II error is __ , the probability of a Type I error is _.

The c² distribution is a single probability curve.