Student Resource 2.2
Worksheet: Business Forms and Types Case Studies
Student Names:_ Date:_
Directions: Read the following case studies and determine the following: 1) business form, 2) rationale for
business form, 3) at least two advantages and two disa
Errors in Hypothesis Tests
Errors
When you perform a hypothesis test
you make a decision:
you
reject H0 or fail to reject H0
When you make one
of these decisions,
there is a possibility
that you could be
wrong!
That you made an
error!
There are two decisi
Why is the study of variability
important?
important?
Allows us to distinguish between
usual & unusual values
In some situations, want more/less
variability
scores on standardized tests
time bombs
medicine
Measures of Variability
Measures
range (max
+
Chapter 4: Designing Studies
Section 4.3
Using Studies Wisely
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 4
Designing Studies
4.1
Samples and Surveys
4.2
Experiments
4.3
Using Studies Wisely
+ Section 4.3
Using Stu
Two-Sample
Proportions
Inference
Inference
Sampling Distributions for the
difference in proportions
difference
Whentossingpennies,theprobabilityofthecoinlandingonheadsis0.5.However,
whenspinningthecoin,theprobabilityofthecoinlandingonheadsis0.4.Lets
inves
Two-Sample
Inference
Procedures with
Means
Suppose we have a population of
adult
men with a mean height of
71 inches and
standard deviation
of 2.6 inches. We
also have a population of adult women with a
mean height of 65 inches and standard
deviation of 2
+
Chapter 12: More About Regression
Section 12.2
Transforming to Achieve Linearity
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 12
More About Regression
12.1
Inference for Linear Regression
12.2
Transforming to Achieve
+
Chapter 6: Random Variables
Section 6.2
Transforming and Combining Random Variables
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 6
Random Variables
6.1
Discrete and Continuous Random Variables
6.2
Transforming and Co
Hypothesis Tests
Hypothesis
OneSampleMeans
HowcanItelliftheyreallyare
Example2:Agovernmentagencyhas
underweight?
receivednumerouscomplaintsthata
particularrestauranthasbeenselling
Hypothesis test
underweighthamburgers.Therestaurant
will help me
advertises
+
Chapter 9: Testing a Claim
Section 9.2
Tests About a Population Proportion
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 9
Testing a Claim
9.1
Significance Tests: The Basics
9.2
Tests about a Population Proportion
9.
+
Chapter 9: Testing a Claim
Section 9.3
Tests About a Population Mean
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 9
Testing a Claim
9.1
Significance Tests: The Basics
9.2
Tests about a Population Proportion
9.3
Test
+
Chapter 9: Testing a Claim
Section 9.1
Significance Tests: The Basics
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 9
Testing a Claim
9.1
Significance Tests: The Basics
9.2
Tests about a Population Proportion
9.3
Tes
+
Chapter 3: Describing Relationships
Section 3.1
Scatterplots and Correlation
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 3
Describing Relationships
3.1
Scatterplots and Correlation
3.2
Least-Squares Regression
+ Sec
+
Chapter 7: Sampling Distributions
Section 7.1
What is a Sampling Distribution?
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 7
Sampling Distributions
7.1
What is a Sampling Distribution?
7.2
Sample Proportions
7.3
Sa
+
Chapter 4: Designing Studies
Section 4.1
Samples and Surveys
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 4
Designing Studies
4.1
Samples and Surveys
4.2
Experiments
4.3
Using Studies Wisely
+ Section 4.1
Samples an
+
Chapter 7: Sampling Distributions
Section 7.2
Sample Proportions
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 7
Sampling Distributions
7.1
What is a Sampling Distribution?
7.2
Sample Proportions
7.3
Sample Means
+ S
+
Chapter 7: Sampling Distributions
Section 7.3
Sample Means
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 7
Sampling Distributions
7.1
What is a Sampling Distribution?
7.2
Sample Proportions
7.3
Sample Means
+ Section
Regression
Regression
y = + x
t hg e W
i
What would
you expect
How much
for weigh
This She ouldother
distributionadult
w could an
heights?
v ormally
is narying amounts if
female weigh
60
60
60
60
62
62
62
64
64
64
66
66
68
68
Height
in other words,
distr
Regression
Regression
y = + x
t hg e W
i
What would
you expect
How much
for weigh
This She ouldother
distributionadult
w could an
heights?
v ormally
is narying amounts if
female weigh
60
60
60
60
62
62
62
64
64
64
66
66
68
68
Height
in other words,
distr
Chapter Review
A z-score is:
a)
b)
c)
d)
The mean of the distribution
The deviation from the mean divided
by the standard deviation
Always positive
The standard error
The mean score on a certain
mathematics aptitude test is 72, with a
standard deviation o
Power of a test
Power
The power of a test (against a
power
specific alternative value)
Istheprobabilitythatthetestwillrejectthe
nullhypothesiswhenthealternativeistrue
Inpractice,wecarryoutthetestinhopeof
showingthatthenullhypothesisisfalse,so
highpoweri
+
Chapter 2: Modeling Distributions of Data
Section 2.2
Normal Distributions
The Practice of Statistics, 4th edition - For AP*
STARNES, YATES, MOORE
+
Chapter 2
Modeling Distributions of Data
2.1
Describing Location in a Distribution
2.2
Normal Distribu
+
Chapter 2: Modeling Distributions of Data
Section 2.1
Describing Location in a Distribution
The Practice of Statistics, 4th edition - For AP*
STARNES, YATES, MOORE
+
Chapter 2
Modeling Distributions of Data
2.1
Describing Location in a Distribution
2.
LSRL
Bivariate data
x variable: is the independent or
explanatory variable
y- variable: is the dependent or
response variable
Use x to predict y
y = a + bx
y - (y-hat) means the predicted y
b is the slope
it is the amountBe sure to increases hat
by wh
+
Chapter 1: Exploring Data
Introduction
Data Analysis: Making Sense of Data
The Practice of Statistics, 4th edition - For AP*
STARNES, YATES, MOORE
+
Chapter 1
Exploring Data
Introduction:
Data Analysis: Making Sense of Data
1.1
Analyzing Categorical D
+
Chapter 11: Inference for Distributions of
Categorical Data
Section 11.2
Inference for Relationships
The Practice of Statistics, 4th edition For AP*
STARNES, YATES, MOORE
+
Chapter 11
Inference for Distributions of
Categorical Data
11.1
Chi-Square Good
Inference
Review Session
AP Statistics
Workshop 2008
J. Swaynos - Inference
1
What are the different tests?
One sample z test for mean
One proportion z test
Two sample z test
Two proportion z test
One sample t test
Two sample t test
Match Pair t test or z