chapter1 exercise for managerial decision modeling
MS5313 Managerial Decision Modeling
Part I: Chapter 1 Describing Data with Graphical Methods
Exercises
Multiple Choice Questions:
Identify the letter of the choice that best completes the statement or answers the question.
1. Which of the following is most likely a population as opposed to a sample?
a) respondents to a newspaper survey.
b) the first 5 students completing an assignment.
c) every third person to arrive at the bank.
d) registered voters in a county.
D
2. Which of the following is most likely a parameter as opposed to a statistic?
a) The average score of the first five students completing an assignment.
b) The proportion of females registered to vote in a county.
c) The average height of people randomly selected from a database.
d) The proportion of trucks stopped yesterday that were cited for bad brakes.
D
3. To monitor campus security, the campus police office is taking a survey of the number of students in a parking lot each 30 minutes of a 24-hour period with the goal of determining when patrols of the lot would serve the most students. If X is the number of students in the lot each period of time, then X is an example of
a) a categorical random variable.
b) a discrete random variable.
c) a continuous random variable.
d) a statistic.
B
4. Researchers are concerned that the weight of the average American school child is increasing implying, among other things, that children’s clothing should be manufactured and marketed in larger sizes. If X is the weight of school children sampled in a nationwide study, then X is an example of
a) a categorical random variable.
b) a discrete random variable.
c) a continuous random variable.
d) a parameter.
C
5. The classification of student major (accounting, economics, management, marketing, other) is an example of
a) a categorical random variable.
b) a discrete random variable.
c) a continuous random variable.
d) a parameter.
A
6. You have collected data on the
Part I: Chapter 1 Describing Data with Graphical Methods
Exercises
Multiple Choice Questions:
Identify the letter of the choice that best completes the statement or answers the question.
1. Which of the following is most likely a population as opposed to a sample?
a) respondents to a newspaper survey.
b) the first 5 students completing an assignment.
c) every third person to arrive at the bank.
d) registered voters in a county.
D
2. Which of the following is most likely a parameter as opposed to a statistic?
a) The average score of the first five students completing an assignment.
b) The proportion of females registered to vote in a county.
c) The average height of people randomly selected from a database.
d) The proportion of trucks stopped yesterday that were cited for bad brakes.
D
3. To monitor campus security, the campus police office is taking a survey of the number of students in a parking lot each 30 minutes of a 24-hour period with the goal of determining when patrols of the lot would serve the most students. If X is the number of students in the lot each period of time, then X is an example of
a) a categorical random variable.
b) a discrete random variable.
c) a continuous random variable.
d) a statistic.
B
4. Researchers are concerned that the weight of the average American school child is increasing implying, among other things, that children’s clothing should be manufactured and marketed in larger sizes. If X is the weight of school children sampled in a nationwide study, then X is an example of
a) a categorical random variable.
b) a discrete random variable.
c) a continuous random variable.
d) a parameter.
C
5. The classification of student major (accounting, economics, management, marketing, other) is an example of
a) a categorical random variable.
b) a discrete random variable.
c) a continuous random variable.
d) a parameter.
A
6. You have collected data on the