Exam 2
Alternative Hypothesis:
What you suspect is true
Always stated in terms of a population parameter
HA : u > 0.545 degrees
A statement that the population parameter (e.g. mean,
proportion, st
Chapter 2
Frequency Distribution (Table)
*Definition: a table that lists datavalues along with their corresponding
frequencies (or counts).
*Frequency tables help us understand the nature of our data
H0=0.26
HA#0.26
pvalue=0.03
Chi Square Test:
alpha=0.5
reject the Null
There is strong evidence the pop st deviation is not 0.26
H0=o1 square=o2 square=o3 square=.=on square
Borthett test
H0=u1=u2=u3
Math 159 Quiz 6
Chapter 6 Study Guide:
Understand the relationship between random sample statistics and
probability distributions (i.e. the most important slide in Ch 6)
Sample statistics (like the s
Math 159 Quiz 5
Chapter 5 Study Guide:
Define a Random Variable:
A function that can assign an unique numerical value, determined by
chance, for each outcome of a procedure.
Examples: rolling a die,
The Chapter 3 quiz has some questions were you have
to write down the answers
(NOT all TrueFalse or Multiple Choice questions):

Definition of the Standard Deviation:

Definition of a Percentile:

Math 159
Chapter 2 Quiz
 Know what type of data is used in a histogram : quantitative data.
 Know what type of data is used for a Pareto chart : qualitative data.
 Know rules for good graphs (inclu
Math 159 (Statistics) Class
Chapter 1 Quiz
Definitions for these terms:
?
Quantitative or numerical data: data
consisting of number representing values, counts or
measurements. Ex: height, weight, blo
Math 159 Exam 1
Percentile: The 99 values that divide a ranked (sorted) dataset into 100 groups with
approximately 1% of the values in each grouping.
Probability:
A number between 0 and 1 (inclusive)
Math 159 Final Exam Study Guide
Chapte
r
1
1
1
1
1
1
1
Topic
Know Good / Bad uses of statistics (e.g. too small a sample is
bad, a haphazard sample is bad for inference, etc.)
Qualitative and Quantita
Exam 2 Study Guide  Math 159
Term / Concept
Alternative Hypothesis
ANOVA
Bartlett's Hypothesis Test
Binomial Distribution
Central Limit Theorem
Chi Square Hypothesis Test
Confidence Interval
Confiden
Tho Au
Microeconomics
Professor: Tina Mosleh
Stock Assignment
12/05/2012
Stock Paper
After doing some research online, I have decided to invest all my money ($10,00) into Cisco
Stock because there are
Chapter 13
Non Parametric Hypothesis Tests
Parametric Hypothesis Test Definition
Hypothesis Tests which have requirements about the nature or share of the
populations involved
Very commonly used
Examp
Chapter 12
The ANOVA Hypothesis Test
A hypothesis test for comparing the equality of 2 or more means
Alternative Hypothesis: at least one mean is different from the others
Null Hypothesis: the means a
Chapter 10
Scatterplot: a graphical display of paired quantitative data used
to look for outliers or relationships between the variables
Correlation coefficient: a statistic or parameter that measures
Chapter 9
Hypothesis Testing for 2 Samples
Two Sample Hypothesis Test for Means
Ho: u1=u2
HA: u1 =/ u2 (or > or <)
Two samples are independent if the sample values from one population are not
related
Chapter 8
Hypothesis Test
A tool of statistic inference
Used when you want to make a statement or decision about population parameter
using a random sample
Can be performed for ay population parameter
Chapter 7
Tools of Statistical Inference Part 1
Confidence Intervals
Point Estimate:
One tool of statistical inference
A single value from a random sample (a statistic like xbar or s) used to estimat
Chapter 6
Continuous Probability Distribution
Theoretical Continuous Probability Distributions
Non discrete equivalents of what we studied in Chapter 5
Answers the problemwhat to do when dealing with
Chapter 5
Discrete Probability Distributions
Function
A mathematical rule that provides exactly one output value for each input value
X= 5; f (x)= 2*x => f (5) = 2*5 = 10
A function that can assign an
Chapter 3
Common Statistics and Parameters
Measure of Center
*Arithmetic Mean (or Arithmetic Average)
 A statistic (or parameter), which measures the center of a dataset by adding the values in
a dat
Chapter 2
Frequency Distribution (Table)
*Definition: a table that lists datavalues along with their corresponding frequencies (or
counts).
*Frequency tables help us understand the nature of our data
Chapter 13 Study Guide:
Know the definition of a Nonparametric Hypothesis Test
Hypothesis Test which have no requirements about the nature or
share of the populations involved (e.g. do not require No
Chapter 10 Study Guide:
Define the term scatterplot:
Scatterplot: a graphical display of paired quantitative data used to look for outliers or
relationships between the variables.
Define the term regr
Chapter 8 Study Guide:
Be able to interpret the results of a hypothesis test. If given a scenario and a pvalue be able to:
o Tell me if should reject or accept based on the pvalue and the alpha lel
Chapter 7 Study Guide:
Define Alpha error for a confidence interval
The chance that your confidence interval does not overlap the true unknown population
parameter
The failure rate of the confidence