IBUS Research in International
Business and the Global Market Exam
Questions and Answers
The probability of rejecting a false null hypothesis, a.k.a. the power of the test, is
__________. - ANSWER-1 - ß (1 - beta)
A common way to determine the validity of a new survey instrument is: - ANSWER-
Test the new instrument for correlations with an established instrument.
If the writers of a survey test the survey by having the same people administer the
survey to the same subjects at different times, they are most likely testing the survey
for: - ANSWER-reliability
The p-value is the probability of getting the observed or more extreme sample mean,
if the null hypothesis is __________. You should reject the null hypothesis if your p-
value is __________ than alpha. - ANSWER-true / less
A simple random sample is not always the best way to obtain survey data. -
ANSWER-Good. There are many ways to obtain sample data, and a simple random
sample is only one. We often use convenience samples in surveys because they are
easy to obtain (low costs in $ and time). Make certain it is diverse, if not perfectly
representative of the population.
The correct answer is 'True'.
The t-test for the difference between two means is most useful for - ANSWER-small
samples only.
The main issue in survey ethics is often related to - ANSWER-The character of the
population/sample.
The t-test of sample mean differences is best for large samples (>30 data points)
while the z-test is best for small samples (<30) - ANSWER-False
The below survey item is a good example of a proper survey item because
I greatly enjoy the taste of Magnum Ice Cream Bars.
_______ _______ _______ _______ _______ | _______
Strongly Disagree Neutral Agree Strongly | Don't know
Disagree Agree - ANSWER-a. It expresses a strongly worded positive statement,
which provokes a concrete response in respondents.
b. It only asks about one idea: how much the respondent enjoys the taste of
Magnum Bars.
c. It is not asking about a complex idea.
d. It allows the respondent to check "Don't KNow" in case they have never tried a
Magnum Bar.
Business and the Global Market Exam
Questions and Answers
The probability of rejecting a false null hypothesis, a.k.a. the power of the test, is
__________. - ANSWER-1 - ß (1 - beta)
A common way to determine the validity of a new survey instrument is: - ANSWER-
Test the new instrument for correlations with an established instrument.
If the writers of a survey test the survey by having the same people administer the
survey to the same subjects at different times, they are most likely testing the survey
for: - ANSWER-reliability
The p-value is the probability of getting the observed or more extreme sample mean,
if the null hypothesis is __________. You should reject the null hypothesis if your p-
value is __________ than alpha. - ANSWER-true / less
A simple random sample is not always the best way to obtain survey data. -
ANSWER-Good. There are many ways to obtain sample data, and a simple random
sample is only one. We often use convenience samples in surveys because they are
easy to obtain (low costs in $ and time). Make certain it is diverse, if not perfectly
representative of the population.
The correct answer is 'True'.
The t-test for the difference between two means is most useful for - ANSWER-small
samples only.
The main issue in survey ethics is often related to - ANSWER-The character of the
population/sample.
The t-test of sample mean differences is best for large samples (>30 data points)
while the z-test is best for small samples (<30) - ANSWER-False
The below survey item is a good example of a proper survey item because
I greatly enjoy the taste of Magnum Ice Cream Bars.
_______ _______ _______ _______ _______ | _______
Strongly Disagree Neutral Agree Strongly | Don't know
Disagree Agree - ANSWER-a. It expresses a strongly worded positive statement,
which provokes a concrete response in respondents.
b. It only asks about one idea: how much the respondent enjoys the taste of
Magnum Bars.
c. It is not asking about a complex idea.
d. It allows the respondent to check "Don't KNow" in case they have never tried a
Magnum Bar.
