MGMT 1400 Statistical Methods Class 12
Hypothesis Testing Continued Ch. 10, 11
In the previous class
What is hypothesis testing
How to identify the null and alternative hypotheses
The sampling distribution of the mean (Chapter 9.1)
Steps in conducting the
MGMT 1400 Statistical Methods Class 14
One Population Test - Notes
Inference about a Population Proportion
Example
Angry Birds is one of the most popular games on various platforms. According to
one source only 45% of players purchased the paid version
MGMT1400StatisticalMethodsClass2
Data Presentation Notes
Introductory concepts
Sampling
Question 1.4: a manufacturer of computer chips claims that less than 10% of its
products are defective. When 1,000 chips were drawn from a large production,
7.5% were
MGMT1400StatisticalMethodsClass9
Random Variables Chapter 7 Notes
Introduction
X is a random variable defined as a count of twitter followers you have
P(x) is the probability of each specific X value (hence we use a lower case x)
The table above is an
MGMT 1400 Statistical Methods Class 13
One Population Test - Notes
Test for m, s unknown
T-Distribution
Students t-Distribution
The t-distribution is similar to the normal distribution (general shape) but its
shape also depends on the sample size
Specifi
MGMT1400StatisticalMethodsClass1
Course Overview Syllabus Notes
Statistical Methods
Course Overview
Upon completing this course you would:
Work with Excel to handle large datasets
Obtain and interpret descriptive statistics
Conduct statistical tests o
MGMT1400StatisticalMethodsClass67
Probability & Bayes Theorem Notes
Probability theory
the branch of mathematics that focuses on the likelihood of random events to
occur.
people often estimate the chances of
getting a job,
winning a bid
obtaining fundi
MGMT1400StatisticalMethodsClass4
Describing Data- Centrality & Variation Notes
Measure of centrality: mean, median, and mode
Measures of variation: variance and standard deviation
Introduction
Fundamental to any interpretation of data is the context in wh
MGMT 1400 Statistical Methods Class 16
Hypothesis testing for TWO Populations Notes
Hypothesis testing for two population parameters
More hypothesis tests but involving two populations
Comparing means
Independent sample equal variances
Independent sam
MGMT 1400 Statistical Methods Class 17
Regression Notes
Regression
Economists look at consumption as a function of a persons income
How can we estimate this empirically?
Regression analysis enables us to estimate the strength and direction of relation
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250000000000
O il R e s e r ve s ( g )
Brazil
12620000000
Canada
1.7810E+011
China
16000000000
Iran
1.3620E+011
Iraq
1.1500E+011
Kazakhstan30000000000
Kuwait
1.0400E+011
Libya
43660000000
Nigeria
36220000000
Qatar
15210000000
Russia
600000000
Country vs. Oil Reserves
300000000000
250000000000
O il R e s e r ve s ( g )
Brazil
12620000000
Canada
1.7810E+011
China
16000000000
Iran
1.3620E+011
Iraq
1.1500E+011
Kazakhstan30000000000
Kuwait
1.0400E+011
Libya
43660000000
Nigeria
36220000000
Qatar
152