BUS 352
Business Statistics
LATEST FINAL EXAM REVIEW
Q&S
©2024/2025
,1. Multiple Choice: What statistical method would be most
appropriate for forecasting sales based on historical data?
a) Regression analysis
b) Time series analysis
c) Chi-square test
d) ANOVA
Correct Answer: b) Time series analysis
Rationale: Time series analysis is best suited for forecasting and
understanding past behaviors by analyzing the trends and patterns
in time-ordered data sets.
2. Fill-in-the-Blank: The ________ is a measure of the average
distance between each data point and the mean, expressing the
spread of a distribution.
Correct Answer: Standard deviation
Rationale: The standard deviation quantifies the amount of
variation or dispersion in a set of values.
3. True/False: The p-value in hypothesis testing represents the
probability that the null hypothesis is true.
Correct Answer: False
©2024/2025
, Rationale: The p-value indicates the probability of obtaining test
results at least as extreme as the results actually observed, under the
assumption that the null hypothesis is true.
4. Multiple Response: Which of the following are assumptions of
linear regression? (Select all that apply)
a) Linearity
b) Homoscedasticity
c) Independence of errors
d) Normal distribution of errors
e) Equal variance across all levels of independent variables
Correct Answers: a) Linearity, b) Homoscedasticity, c)
Independence of errors, d) Normal distribution of errors
Rationale: These are key assumptions that need to be met for
linear regression models to provide reliable forecasts.
5. Multiple Choice: In cluster analysis, the Elbow Method is used
to determine:
a) The number of clusters
b) The distance between clusters
c) The similarity within clusters
d) The outliers in the data
Correct Answer: a) The number of clusters
©2024/2025
Business Statistics
LATEST FINAL EXAM REVIEW
Q&S
©2024/2025
,1. Multiple Choice: What statistical method would be most
appropriate for forecasting sales based on historical data?
a) Regression analysis
b) Time series analysis
c) Chi-square test
d) ANOVA
Correct Answer: b) Time series analysis
Rationale: Time series analysis is best suited for forecasting and
understanding past behaviors by analyzing the trends and patterns
in time-ordered data sets.
2. Fill-in-the-Blank: The ________ is a measure of the average
distance between each data point and the mean, expressing the
spread of a distribution.
Correct Answer: Standard deviation
Rationale: The standard deviation quantifies the amount of
variation or dispersion in a set of values.
3. True/False: The p-value in hypothesis testing represents the
probability that the null hypothesis is true.
Correct Answer: False
©2024/2025
, Rationale: The p-value indicates the probability of obtaining test
results at least as extreme as the results actually observed, under the
assumption that the null hypothesis is true.
4. Multiple Response: Which of the following are assumptions of
linear regression? (Select all that apply)
a) Linearity
b) Homoscedasticity
c) Independence of errors
d) Normal distribution of errors
e) Equal variance across all levels of independent variables
Correct Answers: a) Linearity, b) Homoscedasticity, c)
Independence of errors, d) Normal distribution of errors
Rationale: These are key assumptions that need to be met for
linear regression models to provide reliable forecasts.
5. Multiple Choice: In cluster analysis, the Elbow Method is used
to determine:
a) The number of clusters
b) The distance between clusters
c) The similarity within clusters
d) The outliers in the data
Correct Answer: a) The number of clusters
©2024/2025
