Chapter 3
Numerical
Descriptive Measures
PowerPoint to accompany:
Learning Objectives
1. Measures of central tendency Grouped & Ungrouped
data
Mean, Median, Mode, Quartiles
2. Measure of variation Grouped & Ungrouped data
Range, Interquartile range, varia
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Table Of Contents
o HEADLINES
o TRENDS
o PRODUCTION,
HE_07A_Solutions: Confidence Interval Estimations
1. The manager of a paint supply store wants to estimate the actual amount of paint contained in
4-liter cans purchased from a national known manufacturer. It is known from the
manufacturers specifications
CE_08C: Hypothesis Testing
For the below questions (1 & 2), use hypothesis testing by critical value approach to make the statistical
decision and managerial conclusion.
1. A major videocassette rental chain is considering opening a new store in an area t
HE_06A Sampling Distribution (Chapter 7)
Question 1
The amount of time a bank teller spends with each customer has a population mean of 3.1 minutes and
standard deviation of 0.4 minute.
a. If a sample of 25 customers is selected randomly, what assumption
CE_07A: Confidence Interval Estimations
1. A police chief is investigating the average length of time criminals serve for minor crimes. A past
research indicates a population standard deviation of 18 days. A sample of 36 prisoners showed a
mean prison ter
HE_04B: Binomial Distribution
1) Phm Thnh Lngs mum likes Ph so much that in the last 30 days she served it 20 times for
breakfast. What is the probability that in the next ten days she will serve it at least 1 time but at
most 8 times?
Hint: First write d
CE_06B Sampling Distribution (Chapter 7)
Question 1
The quality control manager at a light bulb factory needs to estimate the proportion of defective light
bulbs in a shipment of 1,000 bulbs. It is known that 5% of light bulbs manufactured by the factory
CE_07B: Confidence Interval Estimations
1. In a survey of 673 respondents, 237 reported that they would prefer to drink coffee in
a cafe where there is nice music, wireless internet and air-conditioner even though the
price of the coffee is much higher.
a
Legal Forms of Business
and Its Regulations
Tran Thang Long, PhD
Objectives
Basic understanding to business entities
Introduction to legal forms of business
organization in Vietnam
Characteristics and features of business
entities
Regulations regardin
CE_04B: Binomial Distribution
1)
The quality management officer of a financial services firm is concerned with the number of
customers who are complaining about the service charges they are paying when they take out a
loan. Surveys of bank customers have
CE_07B_Solutions: Confidence Interval Estimations
1. In a survey of 673 respondents, 237 reported that they would prefer to drink coffee in a caf
where there is nice music, wireless internet and air-conditioner even though the price of the
coffee is much
HE_02B_Solutions: Numerical Descriptive Statistics
1) The cost of 14 models of digital cameras at a camera specialty store were as follows:
34
0
37
0
45
0
40
0
45
0
31
0
28
0
34
0
22
0
43
0
34
0
27
0
29
0
38
0
a. Calculate the mean, median, mode, first qu
HE_01B - Organizing and Presenting Data (Chapter 3)
1. A researcher has decided to construct a frequency distribution for
a set of data containing 60 numbers. The lowest number is 23 and
the highest number is 68. If 5 classes are used, the class width
sho
CE_08B: Hypothesis Testing
Test the hypothesis for the below three questions:
1. The inspection division of the XYZ bottling company suspects that not sufficient amount of soft drink has
been placed in 2-liter bottles. A random sample of 100 bottles obtai
HE_08B: Hypothesis Testing
Test the hypothesis for the below two questions:
1. A manufacturer of flashlight batteries suspected that using bad quality materials caused a significant
decrease in the average life-time of the batteries which is claimed to be
HE_08C: Hypothesis Testing
1. The owner of a petrol station wants to study petrol-purchasing habits by motorist at his station. He
selects a random sample of 60 motorist during a certain week with the following results:
Average amount petrol purchased 42.
HE_07B: Confidence Interval Estimations
1. A survey of 500 highly educated women who left careers for family reasons found 66%
postponed their return to work due to difficulty in making suitable childcare arrangements.
a. Construct a 95% confidence interv
HE_08A: Hypothesis Testing
1. For a given level of significance, if the sample size is increased, what will happen to the power of the
test?
2. For a given level of significance, if the sample size is increased, the probability of committing a Type
I erro
HE_05B Normal Distribution (Chapter 6)
1. For a medical study, a researcher wishes to select people in the middle 60% of the population
based on blood pressure. If the mean systolic blood pressure is 120 and standard deviation 8,
find the upper and lower
CE 05B Normal Distribution (Chapter 6)
1. Calculate the following probabilities for given values of Z
P( Z 1.7)
P( Z 1.1)
P( Z 1.5)
P(1.55 Z 1.93)
P( 2.34 Z 0.16)
P( Z 1.43 or Z 2.03)
P( Z 1.835)
2. Calculate the following probabilities for the mea
CE_04A: Discrete Distribution and Counting Rules
1)
You are offered an investment opportunity. Its outcomes and probabilities are presented in the
following table.
x
P(x)
$1000
$0
+$1000
+$2000
+$4000
Totals:
0.20
0.30
0.20
0.20
0.10
x P (x )
x 2 P ( x )
Contract Law
Tran Thang Long, PhD
Outline
The concept of
contract
Contract law
Validity of
contract
Contract
Remedies
Rights and
Obligations of
parties
The making of
a contract
A civil contract is an
agreement between the
parties to establish, change
or t
LEGAL
ENVIRONMENT FOR
BUSINESS
Dr. Tran Thang Long
Legislations
Constitution of Vietnam 2013
Civil Code of Vietnam - 2005
Commercial Law 2005
Law on Investment 2005
Law on Investment 2014
Law on Enterprises 2005
Law on Enterprises 2014
Law on Intellectual
Bankruptcy Law
Tran Thang Long, PhD.
Outline
The concept of Bankruptcy and
situation of Bankruptcy
Law on Bankruptcy
Procedures for Bankruptcy cases
Legislation
The Law on Bankruptcy 2014
The concept of
Bankruptcy
What is Bankruptcy?
Phenomena of a
ma
SETTLEMENT OF COMMERCIAL DISPUTES BY ARBITRATION
Plaintiff:
- Statement of claim
- Arbitration agreement
- Documents, evidence relating to
the dispute
- Provisional advance of arbitration
fees
Establishment of
Arbitration Panel or
selection of arbitrator(
Business Dispute
Resolutions
Tran Thang Long, PhD
Settlement of Commercial Disputes in Vietnam
Commercial disputes
Means for Settlement of Commercial Disputes
Settlement of Commercial Disputes by
Commercial Arbitration
Settlement of Commercial Disputes by
LAW ON COMMERCIAL ARBITRATION QUIZ
True or false
1. Arbitration has jurisdiction to settle disputes to which all parties are engaged in commercial activities
2. Arbitration agreement means an agreement between the parties to use arbitration to resolve a d
Ni Dung
2005
Ngha v ca
Doanh nghip
Hot ng kinh doanh theo ng ngnh, ngh ghi trong
Giy chng nhn ng k kinh doanh.
2014
B ni dung hot ng kinh doanh theo ng ngnh, ngh
ghi trong Giy chng nhn ng k kinh doanh. Nhng cng
nh quy nh lut c Doanh nghip c ngha v p ng
QUESTIONS MARK TOTAL
Q1
1.a
1.b
1.c
Q2
2.a
2.b
2.c
Q3
3.a
3.b
Q4
4.a
4.b
4.c
Q5
5.a
5.b
5.c
5.d
TOTAL
1.5
0.5
0.5
0.5
4
1
2
1
3
1
2
3
1
1
1
2.5
0.5
0.5
1.5
0
14
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