MAS 291 THEORY EXAM QUESTIONS WITH VERIFIED SOLUTIONS LATEST UPDATE 2026
Data that describe a characteristic about a population is known as a ________.
A. parameter
B. sample
C. statistic
D. survey
E. None of the other choices is true - Answers A
Those methods involving the collection, presentation, and characterization of a set of data in order to
properly describe the various features of that set of data are called____________
A. statistical inference.
B. descriptive statistics.
C. sampling.
D. the scientific method. - Answers B
The federal government requires manufacturers to monitor the amount of radiation emitted through
the closed door of a microwave oven. One manufacturer measured the radiation emitted by 42
microwave ovens and recorded the values. What is the population?
A. The set of microwave ovens produced by the manufacturer.
B. The subset of 42 microwave ovens whose emission were measured.
C. The set of microwave ovens produced by all manufacturers. - Answers A
Parking at a large university has become a very big problem. University administrators are interested
in determining the average parking time (e.g. the time it takes a student to find a parking spot) of its
students. An administrator inconspicuously followed 210 students and carefully recorded their
parking times. Identify the population of interest to the university administration.
A .The entire set of faculty, staff, and students that park at the university.
B. The parking times of the 210 students from whom the data were collected.
C. The parking times of the entire set of students that park at the university.
D. The students that park at the university between 9 and 10 AM on Wednesdays. - Answers C
A ________ is a portion of a population that is representative of the population from which it is
selected.
A. sample
B. parameter
C. population
D. survey
E. None of the other choices is true - Answers A
An employee at the local ice cream parlor asks three customers if they like chocolate ice cream. What
is the population?
A. three selected customers
B. all women customers.
C. all men customers
D. all customers - Answers D
Retrospective study___________
A. uses current data.
B. uses future data.
C. uses historical data.
D. None of them - Answers C
A Bank of America employee records the amount of time that customers spend using the ATM
machine at her branch. This method of gathering data is known as_____________
A. observation.
B. experiments.
, C. retrospective
D. None of the other choices is correct - Answers A
A stock analyst compares the relationship between stock prices and earnings per share to help him
select a stock for investment. What type of the description is?
A. Observation study
B. Experiment
C. Retrospective study - Answers A
A method of gathering data while the subjects of interest are in their natural environment, often
unaware they are being watched, is known as____________
A. observation.
B. experiments.
C. retrospective
D. None of the other choices is correct - Answers A
The manager at the ABT restaurant wanted to investigate the effect of music on the average revenue
per customer. Each night for one month, fast-paced music was played. The following month, slow-
paced music was played every night. The average revenue per customer for each month was
compared. This method of gathering data is known as
A. experiments.
B. observation.
C. retrospective
D. None of the other choices is correct - Answers A
(Choose 1 answer)
A method of gathering data when subjects are exposed to certain treatments and the data of interest
is recorded is known as_________________
A. experiments.
B. observation.
C. retrospective
D. None of the other choices is correct - Answers A
An event is ____________
A. a collection of elementary events.
B. the list of possible outcomes that can occur from a selection or decision.
C. similar to an experiment but not controlled by the decision maker.
D. more frequently found in business than in other disciplines. - Answers A
Let X be the number of freshmen in the course MAS291. Identify whether X is discrete or continuous.
A. Discrete
B. Continuous
C. None of the other choices is correct - Answers A
Which of the following is a discrete quantitative variable?
A. The number of employees of an insurance company.
B. The volume of water released from a dam.
C. The distance you drove yesterday.
D. The Dow Jones Industrial average. - Answers A
How many baseball teams of nine members can be chosen from among twelve boys, without regard
to the position played by each member?
A. 780
B. 1150
C. 2001
D. 220
Data that describe a characteristic about a population is known as a ________.
A. parameter
B. sample
C. statistic
D. survey
E. None of the other choices is true - Answers A
Those methods involving the collection, presentation, and characterization of a set of data in order to
properly describe the various features of that set of data are called____________
A. statistical inference.
B. descriptive statistics.
C. sampling.
D. the scientific method. - Answers B
The federal government requires manufacturers to monitor the amount of radiation emitted through
the closed door of a microwave oven. One manufacturer measured the radiation emitted by 42
microwave ovens and recorded the values. What is the population?
A. The set of microwave ovens produced by the manufacturer.
B. The subset of 42 microwave ovens whose emission were measured.
C. The set of microwave ovens produced by all manufacturers. - Answers A
Parking at a large university has become a very big problem. University administrators are interested
in determining the average parking time (e.g. the time it takes a student to find a parking spot) of its
students. An administrator inconspicuously followed 210 students and carefully recorded their
parking times. Identify the population of interest to the university administration.
A .The entire set of faculty, staff, and students that park at the university.
B. The parking times of the 210 students from whom the data were collected.
C. The parking times of the entire set of students that park at the university.
D. The students that park at the university between 9 and 10 AM on Wednesdays. - Answers C
A ________ is a portion of a population that is representative of the population from which it is
selected.
A. sample
B. parameter
C. population
D. survey
E. None of the other choices is true - Answers A
An employee at the local ice cream parlor asks three customers if they like chocolate ice cream. What
is the population?
A. three selected customers
B. all women customers.
C. all men customers
D. all customers - Answers D
Retrospective study___________
A. uses current data.
B. uses future data.
C. uses historical data.
D. None of them - Answers C
A Bank of America employee records the amount of time that customers spend using the ATM
machine at her branch. This method of gathering data is known as_____________
A. observation.
B. experiments.
, C. retrospective
D. None of the other choices is correct - Answers A
A stock analyst compares the relationship between stock prices and earnings per share to help him
select a stock for investment. What type of the description is?
A. Observation study
B. Experiment
C. Retrospective study - Answers A
A method of gathering data while the subjects of interest are in their natural environment, often
unaware they are being watched, is known as____________
A. observation.
B. experiments.
C. retrospective
D. None of the other choices is correct - Answers A
The manager at the ABT restaurant wanted to investigate the effect of music on the average revenue
per customer. Each night for one month, fast-paced music was played. The following month, slow-
paced music was played every night. The average revenue per customer for each month was
compared. This method of gathering data is known as
A. experiments.
B. observation.
C. retrospective
D. None of the other choices is correct - Answers A
(Choose 1 answer)
A method of gathering data when subjects are exposed to certain treatments and the data of interest
is recorded is known as_________________
A. experiments.
B. observation.
C. retrospective
D. None of the other choices is correct - Answers A
An event is ____________
A. a collection of elementary events.
B. the list of possible outcomes that can occur from a selection or decision.
C. similar to an experiment but not controlled by the decision maker.
D. more frequently found in business than in other disciplines. - Answers A
Let X be the number of freshmen in the course MAS291. Identify whether X is discrete or continuous.
A. Discrete
B. Continuous
C. None of the other choices is correct - Answers A
Which of the following is a discrete quantitative variable?
A. The number of employees of an insurance company.
B. The volume of water released from a dam.
C. The distance you drove yesterday.
D. The Dow Jones Industrial average. - Answers A
How many baseball teams of nine members can be chosen from among twelve boys, without regard
to the position played by each member?
A. 780
B. 1150
C. 2001
D. 220
