Name: SOLUTIONS
Test #2 Practice Exam
Quantitative Business Analysis
BUSA 3000
Be sure to write down all the formulas you use, and also be sure to state your H0 and HA for the
hypothesis test problems.
1. The standard deviation of the ages of a sample of
1. A stock analyst was provided with a list of 25 stocks. He was expected to pick 3 stocks from the
list whose prices are expected to rise by more than 20% after 30 days. In reality, the prices of only
5 stocks would rise by more than 20% after 30 days. I
1. Referring to Table 4-6, if a randomly selected student has passed the ELM, the probability that the
student is from out of state is _.
ANSWER:
0.136
TYPE: FI DIFFICULTY: Difficult
KEYWORDS: conditional probability, Bayes theorem
2. Referring to Table 4
1.
a)
b)
c)
d)
Whenever p = 0.5, the binomial distribution will
always be symmetric.
be symmetric only if n is large.
be right-skewed.
be left-skewed.
ANSWER:
a
TYPE: MC DIFFICULTY: Moderate
KEYWORDS: binomial distribution, properties
2.
a)
b)
c)
d)
Whene
TABLE 4-2
An alcohol awareness task force at a Big Ten university sampled 200 students after the midterm to
ask them whether they went bar hopping the weekend before the midterm or spent the weekend
studying, and whether they did well or poorly on the mid
1. True or False: If either A or B must occur, they are called collectively exhaustive.
ANSWER:
True
TYPE: TF DIFFICULTY: Easy
KEYWORDS: collective exhaustive
2. True or False: If P(A) = 0.4 and P(B) = 0.6, then A and B must be collectively exhaustive.
AN
1. A debate team of 4 is to be chosen from a class of 35. There are two twin brothers in the class.
How many possible ways can the team be formed which will not include either of the twin
brothers?
ANSWER:
40920
TYPE: PR DIFFICULTY: Moderate
KEYWORDS: cou
1. At the International Pancakes Hut, there are 4 different ways to have an egg cooked, 7 different
choices of pancakes, 5 different types of syrups and 8 different beverages. How many different
ways are there to order an egg, a pancake with a choice of s
1. Referring to Table 4-4, suppose a randomly selected patron is a female. The probability that the
patron prefers beer is _.
ANSWER:
0.55
TYPE: FI DIFFICULTY: Difficult
KEYWORDS: addition rule, multiplication rule, conditional probability
2. True or Fals
1. Referring to Table 4-3, the probability that a randomly selected individual is a child or prefers
hamburger is _.
ANSWER:
140/200
TYPE: FI DIFFICULTY: Moderate
KEYWORDS: empirical classical probability, addition rule
2. Referring to Table 4-3, assume w
1. Suppose A and B are mutually exclusive events where P(A) = 0.4 and P(B) = 0.5. Then P(A and B) =
_.
ANSWER:
0
TYPE: FI DIFFICULTY: Easy
KEYWORDS: mutually exclusive, joint probability, multiplication rule
2. Suppose A and B are mutually exclusive event
1. A recent survey of banks revealed the following distribution for the interest rate being charged on
a home loan (based on a 30-year mortgage with a 10% down payment).
Interest Rate
7.0%
7.5%
8.0%
8.5%
> 8.5%
Probability
0.12
0.23
0.24
0.35
0.06
If a ba
1. A company has 2 machines that produce widgets. An older machine produces 23% defective
widgets, while the new machine produces only 8% defective widgets. In addition, the new
machine produces 3 times as many widgets as the older machine does. What is t
1. The probability that a new advertising campaign will increase sales is assessed as being 0.80. The
probability that the cost of developing the new ad campaign can be kept within the original
budget allocation is 0.40. Assuming that the two events are i
1.
a)
b)
c)
d)
Selection of raffle tickets from a large bowl is an example of
sampling with replacement.
sampling without replacement.
subjective probability.
none of the above
ANSWER:
b
TYPE: MC DIFFICULTY: Easy
KEYWORDS: sampling with replacement, sampl
Do Medical Marijuana Laws Increase Hard Drug Use?
Yu-Wei Luke Chu *
School of Economics and Finance
Victoria University of Wellington
[email protected]
September 15, 2014
Abstract
Medical marijuana laws generate significant debates regarding drug policy.
SERIES
PAPER
DISCUSSION
IZA DP No. 9831
The Effect of Medical Marijuana Laws
on Labor Market Outcomes
Joseph J. Sabia
Thanh Tam Nguyen
March 2016
Forschungsinstitut
zur Zukunft der Arbeit
Institute for the Study
of Labor
The Effect of Medical Marijuana La
REVIEWS
Cannabinoid Abuse and Addiction: Clinical and
Preclinical Findings
LV Panlilio1, SR Goldberg 1 and Z Justinova1
Cannabinoid abuse disorders represent a widespread public health issue, but there are no approved medications for their treatment. This
REVIEW
What Do We Know Now About the Impact of the Laws
Related to Marijuana?
Jane Carlisle Maxwell, PhD and Bruce Mendelson, MPA
Objectives: This study presents information on the status and impact
of medical and legalized marijuana, and the latest data
SERIES
PAPER
DISCUSSION
IZA DP No. 9887
High Times: The Effect of Medical Marijuana Laws
on Student Time Use
Yu-Wei Luke Chu
Seth Gershenson
April 2016
Forschungsinstitut
zur Zukunft der Arbeit
Institute for the Study
of Labor
High Times: The Effect of
Me
Bradford AC, Bradford WD. Medical marijuana laws reduce prescription medication use
in Medicare Part D. Health Aff (Millwood). 2016;35(7).
APPENDIX
Details on Study Data and Methods
Data Sources
The Centers for Medicare and Medicaid Studies (CMS) maintain
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
Reproduced with permission of the copyright owner. Further reproduction prohibited without permission.
Reproduced with permission of the copyright owner
This article was downloaded by: [Columbia University]
On: 05 May 2015, At: 12:14
Publisher: Routledge
Informa Ltd Registered in England and Wales Registered Number: 1072954
Registered office: Mortimer House, 37-41 Mortimer Street, London W1T 3JH,
UK
Journ
EDITORIAL
Cannabinoids: Friend or Foe?
B Le Foll1 and RF Tyndale2
This issue of Clinical Pharmacology & Therapeutics focuses on
cannabinoids. Our understanding of these interesting endogenous and
synthetic compounds, and their role in the cannabinoid syst
Clinical AND Health Affairs
Insights from a Review of
Medical Cannabis Clinical Trials
BY TOM ARNESON, MD, MPH
The Minnesota Legislature passed a law establishing a medical cannabis program in 2014. One of the first tasks
of staff in the new Office of Med
Homework Set #3
COE 2001
Due Date: Wednesday, February 22, 2017 (in class)
Note: for full credit show all your work
1.
P1
(5 points)
(5 points)
(5 points)
(5 points)
(5 points)
Figure P1
2.
P2
(8 points)
(8 points)
(9 points)
Figure P2
(Note: Point B is n
Homework Set #2
COE 2001
Due Date: Wednesday, February 8, 2017 (in class)
Note: for full credit show all your work
1.
P1
(25 points)
Figure P1
P2
2.
(25 points)
Figure P2
3. Three traffic signal lanterns hang from a cable, as shown in Figure P3. Each
lant
Homework Set #7
COE 2001
Due Date: Wednesday, April 19, 2017 (in class)
Note: for full credit show all your work
1. The two bars in Figure P1 are pinned together at C. Find the pin reactions at A
and B. (25 points)
A
100 N
45o
C
B
2m
3m
4m
Figure P1
2. Fi
Homework Set #1
COE 2001
Due Date: January 25, 2017 (in class)
Note: for full credit show all your work
1.
(25 points)
2.
P2.
(25 points)
Figure P2
3.
P3.
(25 points)
Figure P3
4. (25 points)
250
Figure P4.
sum.
Figure P4
Homework Set #5
COE 2001
Due Date: Monday, March 27, 2017 (in class)
Note: for full credit show all your work
1. Member AD in Figure P1 is supported by cables CE, BG, and BF, and by a balland-socket at A. Find the tensions in CE and BF if the tension in B