STA 2000H
TOPIC II:
TOPIC
Data Characteristics &
Data
Summary Measures
Summary
When looking at raw data, we may
be interested in developing summary
measures, which describe the data.
When these measures are computed
for a population they are called
parame
Multiple Choice Questions
16. Which of the following statements is correct concerning job-order costing?
A) Job-order costing would be appropriate for a textbook publisher.
B) All the costs appearing on a job cost sheet are actual costs.
C) Indirect mate
1. Ideal standards do not allow for machine breakdowns and other normal inefficiencies.
Ans: True AACSB: Reflective Thinking AICPA BB: Critical Thinking
AICPA FN: Reporting LO: 1 Level: Easy
2. The standard price per unit for direct materials should refle
True/False Questions 1. Sunk costs are costs that have proven to be unproductive. Ans: False AACSB: Reflective Thinking AICPA BB: Critical Thinking AICPA FN: Decision Making; Reporting LO: 1 Level: Medium 2. All costs are avoidable in a decision except su
?
True/False Questions
1. One way to compute the total contribution margin is to add total fixed expenses to net
operating income.
Ans: True AACSB: Reflective Thinking AICPA BB: Critical Thinking
AICPA FN: Reporting LO: 1 Level: Medium
2. On a CVP graph f
True/False Questions
1. In a process costing system, the costs of one processing department become part of the
costs of the next processing department.
Ans: True AACSB: Reflective Thinking AICPA BB: Critical Thinking
AICPA FN: Reporting LO: 1 Level: Easy
BA213 Review for test # 2 Key
1. Contribution margin can be defined as: a. the amount of sales revenue necessary to cover variable expenses. b. sales revenue minus fixed expenses. c. the amount of sales revenue necessary to cover fixed and variable expens
STA 2000H
STA
TOPIC I: Introduction,
TOPIC
Data Collection, Data
Presentation
Presentation
WHAT IS STATISTICS?
WHAT
Statistics deals with the collection,
presentation, analysis and interpretation
of data in order to make rational
decisions.
Generally, we
STA 2000H
STA
TOPIC III: Regression
TOPIC
and Correlation
and
Regression vs. Correlation
Regression
Regression analysis is used to:
Predict the value of a dependent variable based on
the value of at least one independent variable
Explain the impact of
Lane, Chapter 10
#4 (p.364): As it must adjust for a higher probability of occurrence of the population mean, a
99% confidence interval must include a wider portion of the population tested in order to meet
the probability that it is correct.
#12 (p. 365)
True/False Questions
1. Within the relevant range, a change in activity results in a change in total variable cost
and the per unit fixed cost.
Ans: True AACSB: Reflective Thinking AICPA BB: Critical Thinking
AICPA FN: Reporting LO: 1 Level: Medium
2. Th
Chapter 3
Activity Based Costing (ABC)
ABC (Chapter 3) VS. Conventional Costing (Chapter 2)
Plantwide Overhead Rate
Plantwide Overhead Rate
A single overhead rate used throughout an entire factory.
Direct labor has often been used as the allocation Direct
STAT 2
Lecture 14:
A case study in modelling
Residuals
True value of y minus predicted
value of y
Vertical distance from regression
line
Plot residuals to check for patterns,
outliers, homo- or
heteroscedasticity
RMS error
Find residuals
Square them
F
STAT 2
Lecture 17:
Probability tricks, and a
review
Review: independent events
Two events are independent if the
outcome of one event doesn't
change the probabilities of the
outcomes of the other event
P(A|B) = P(A|not B)
P(A|B) = P(A)
P(B|A) = P(B)
Re
STAT 2
Lecture 21:
Expected value and
standard error
Recall: The law of averages
Which is more likely?
When I roll sixty dice, between
15% to 20% are sixes
When I roll six hundred dice,
between 15% to 20% are sixes
Recall: The law of averages
Which is m
STAT 2
Lecture 1:
An introduction
About the lecturer
Brad Luen
[email protected]
(put STAT 2 in subject line)
http:/www.stat.berkeley.edu/
users/bradluen/stat2/
Why are we here?
World is full of data
Statistics lets us make sense of
data
Theref
STA 2000H
STA
TOPIC IV:
TOPIC
Probability, Probability
Distributions, &
Sampling Distributions
Sampling
BASIC RULES OF PROBABILITY
BASIC
In every probability problem
there is an experiment performed
and a set of possible outcomes of the
experiment.
Sample
STA 2000H
STA
TOPIC V:
TOPIC
Estimation
Estimation
Point and Interval Estimates
Point
A point estimate is a single number,
point
a confidence interval provides additional
confidence
information about variability
Lower
Confidence
Limit
Point Estimate
Wid
STA 2000H
STA
TOPIC VI (Part I):
HYPOTHESIS
TESTING
TESTING
Suppose a supervisor of a
large company believes that
on the average it takes a
worker 2 minutes to complete
a particular task with a
standard deviation of =.2.
How might we decide if his
claim i
STA 2000H
STA
TOPIC VI (Part II):
HYPOTHESIS
TESTING
TESTING
Two Sample Tests
Two
Two Sample Tests
Population
Means,
Independent
Samples
Means,
Related
Samples
Population
Proportions
Population
Variances
Examples:
Group 1 vs.
independent
Group 2
Same grou
Chapter 1: Cost Concepts
Professor Zhang
Types of Organization
Cost classification depends on the type of organization Manufacturing Company
Those firms acquire raw materials, produce finished good, marketing, distributing, billing, etc.
Merchandising Co
Chapter 2
Job-Order Costing
Costing Systems
To assign costs to the products 1. Traditional absorption costing (Full costing)
All Manufacturing costs, both fixed and variable, are assigned to units of product- units are said to fully absorb manufacturing c
STAT 2
Lecture 6:
Centre and spread
Review
Variable: something that varies
from person to person or thing to
thing in a population
Can be categorical, discrete,
continuous
We are interested in the
distribution of variables
Review
Most important graph we