Jaggia & Kelly TestBank: Chapter 07
1. Bias refers to the tendency of a sample statistic to systematically over- or
underestimate a population parameter.
True
False
2. Selection bias occurs when the sample is mistakenly divided into strata, and random
sam
Chapter 10
1. Two random samples are considered independent if the observations in the first
sample are different from the observations of the second sample.
True
False
2.
The difference between the two sample means
difference between two population means
Chapter 08
1. A confidence interval provides a value that, with a certain measure of confidence, is
the population parameter of interest.
True
False
2.
For a given confidence level and sample size n, the width of the confidence interval
for the population
Critically appraise a business report and provide recommendations for improvement.
The Nielsen Companys business report Snack Attack; what consumers are reaching for around the
world, outlines the results from an online survey that collected data on consu
Q6.47 p273 (Edition 7), Q6.47 p245 (Edition 6)
In an effort to reduce the number of bottles with less than 1.90 Litres in them, the bottling company increases the mean fill level to 2.02 Litres (the standard
deviation stays at 0.05 Litres). Calculate:
The
Chapter 09
1. The null hypothesis typically corresponds to a presumed default state of nature.
True
False
2. The alternative hypothesis typically agrees with the status quo.
True
False
3. On the basis of sample information, we either "accept the null hypo
Chapter 06
29. Which of the following is correct?
A. A continuous random variable has a probability density function but not a
cumulative distribution function.
B. A discrete random variable has a probability mass function but not a cumulative
distributio
Business Statistics
CHAPTER 1: STATISTICS AND DATE
1. What is statistics?
Statistics includes 3 steps:
1. We have to find the right data
2. We must use the appropriate statistical tool
3. We must clearly communicate numerical information into written lang
CHAPTER 1 STATISTICS
Inferential Stat: Drawing conclusions about a large set of data (population) based on a smaller set of data, whereas a
sample is a subset oft hat population. Zufallsstichprobe aus Grundgesamtheit. Descriptive Stat: Refers tot he summa
MGMT5504: DADM
QUIZ 2B: MULTIPLE CHOICE
Q1
Which one of the following CANNOT be accurately represented by the
Poisson distribution?
(A)
The weekly number of complaints received at the Parking
Infringements Office.
(B)
The number of Heads obtained from rep
QUESTION QUIZ 1 SHORT-ANSWER REVISION
MULTIPLE-CHOICE SOLUTIONS
1 D: The logical ordering of the categories indicates the data is ordinal, which is a
qualitative scale of measurement.
2 A: The key is that each hamburger store has a similar spread in terms
MGMT5504: DATA ANALYSIS
& DECISION MAKING
QUIZ 2 MULTIPLE-CHOICE REVISION
Q1
Which one of the following CANNOT be satisfactorily modelled by the
binomial distribution?
(A)
20 births at a maternity hospital in one day, with each childs
gender independent (
MGMT5504: DATA ANALYSIS
& DECISION MAKING
QUIZ 1 MULTIPLE-CHOICE REVISION
Q1
A Hollywood survey asked a group of movie critics to rate movies released in
2015 as either Superb, Good, OK, Poor or Awful. This form of rating is an
example of a _ variable.
Q2
MGMT5504: DATA ANALYSIS
& DECISION MAKING
2016/13: EXAM REVISION QUESTIONS
MULTIPLE CHOICE
Q1
Which variable in relation to Business School Masters students
CANNOT be visually summarised by a histogram?
(A)
(B)
(C)
(D)
(E)
Q2
Which one of the following s
MGMT5504: DATA ANALYSIS
& DECISION MAKING
2016/13: EXAM REVISION
SOLUTIONS
MULTIPLE CHOICE
Q
A
Q
A
Q
A
Q
A
1
2
3
4
5
6
7
8
9
10
B
B
E
D
A
C
E
B
D
B
11
12
13
14
15
16
17
18
19
20
C
B
B
E
E
D
C
C
D
C
21
22
23
24
25
26
27
28
29
30
D
B
D
C
A
E
E
D
C
E
31
32
3
MGMT5513 3D Class Exercise 1
Purpose: To demonstrate open-end and closed-end
questioning for collecting data.
Context: The owner of a local supermarket has asked you to
collect data on food shopping habits at their store to help
understand the different c
Problem 7.1
a
Dr
Cr
b
Salary expense
Salary payable
38,400
38,400
Without an adjusting entry, net profit will be $38,400 too high.
Problem 7.2
Cash method
3-Jun Dr electricity expense
Cr cash
5-Jun No entry
7-Jun No entry
9-Jun Dr Insurance expense
Cr Cas