Stat 301
Lab 2
Solution
Last week's lab looked at the data on body fat percentages in men below the age of 55.
The data are available on the course Web site:
http:/www.public.iastate.edu/~wrstephe/sta
Stat 301
Lab 6
Solution
Data from the Scottish Hill Runners Association gives the name of the race, the distance in
miles, the amount of climb in feet and the record time in minutes. Data on a random
Stat 301
Lab 7:
Solution
1. The group exercise for Lab 4 looked at the relationship between the temperature of coffee
and the time since the coffee was poured. The data consists of the temperature (oF
Stat 301
Lab 1
Solution
Use JMP to analyze the data in problem 1 below. It is not sufficient to simply hand in JMP
output. You must answer the questions completely. Hand in the JMP output attached at
Stat 301 Lab 4
Group Activity on Regression
Names of Group Members: _Solution_, _, _
_, _, _
What is the relationship between the temperature or coffee and the time since the coffee
was poured? The da
Stat 301
Lab 3
Solution
For the first two laboratory assignments we looked at percentage body fat for a random
sample of 44 men under the age of 55. Measuring percentage body fat by displacement
of wa
Stat 301 Exam 2
November 5, 2013
Name: _
INSTRUCTIONS: Read the questions carefully and completely. Answer each question
and show work in the space provided. Partial credit will not be given if work i
Stat 301
Lab 5:
Solution
1. Data on new vehicles for the 2004 model year are given in the December 2003 issue
of Kiplingers Personal Finance. A random sample of 100 vehicles was selected.
Using these
Stat 301 Exam 1
October 1, 2013
Name: _
INSTRUCTIONS: Read the questions carefully and completely. Answer each question
and show work in the space provided. Partial credit will not be given if work is
Stat 301 Lecture 6
Simple Linear Regression
Question
Is
annual carbon dioxide
concentration related to
annual global temperature?
1
Simple Linear Regression
Response variable, Y.
Annual
(o
global tem
Stat 301 Lecture 7
Simple Linear Regression
Question
Is
annual carbon dioxide
concentration related to
annual global temperature?
1
Biv ariate Fit of Temp By CO2
15.0
Temp
14.5
14.0
13.5
300
350
400
C
Stat 301 Lecture 3
Lab 0 Results
1
Parameter numerical
summary of the entire
population.
Population all items
of interest.
Example: All vehicles made
In 2004.
Example: population mean
fuel economy (MP
Stat 301 Lecture 8
Regression model
Y y| x
Y
represents a value of the response
variable.
y| x represents the population mean
response for a given value of the
explanatory variable, x.
represents t
Stat 301 Lecture 10
Correlation
A measure of the strength of
the linear association
between two numerical
variables.
1
Sample Covariance
Measure of the co-variability
between two numerical
variables.
Stat 301 Lecture 5
Two Independent Samples
Question
In
2000, did men and
women differ in terms of
their body mass index?
1
Populations
random
selection
2. Male
Inference
1. Female
random
selection
Sam
Stat 301 Lecture 9
Regression model
Y y| x
Y
represents a value of the response
variable.
y| x represents the population mean
response for a given value of the
explanatory variable, x.
represents t
Random Sampling
The first lab is today at 2:10
Upstairs in Gilman 2272
1
Random Sampling
When random sampling from a
population with mean, , and
standard deviation, , the
distribution of the sample
First Day
Sign up Sheet
Syllabus go over
1
The Big Picture
What is statistics all about?
2
The Big Picture
Statistics is about variability!
Recognizing
variability.
Quantifying variability.
Explaining
Stat 301 Lecture 7
Simple Linear Regression
Question
Is
annual carbon dioxide
concentration related to
annual global temperature?
1
Bivariate Fit of Temp By CO2
15.0
Temp
14.5
14.0
13.5
300
350
400
CO
Stat 301 Lecture 8
Regression model
Y y| x
Y
represents a value of the response
variable.
y| x represents the population mean
response for a given value of the
explanatory variable, x.
represents t
Stat 301 Lecture 9
Regression model
Y y| x
Y
represents a value of the response
variable.
y| x represents the population mean
response for a given value of the
explanatory variable, x.
represents t
Stat 301 Lecture 10
Correlation
A measure of the strength of
the linear association
between two numerical
variables.
1
Sample Covariance
Measure of the co-variability
between two numerical
variables.
Stat 301 Lecture 6
Simple Linear Regression
Question
Is
annual carbon dioxide
concentration related to
annual global temperature?
1
Simple Linear Regression
Response variable, Y.
Annual
(o
global tem
Stat 301 Lecture 5
Two Independent Samples
Question
In
2000, did men and
women differ in terms of
their body mass index?
1
Populations
random
selection
2. Male
Inference
1. Female
random
selection
Sam
Stat 301 Lecture 2
Results from Lab 0
Guessed values are biased
towards the high side.
Judgment sample means are
biased toward the high side
and are more variable.
1
Random Sampling
When random sampli
Stat 301 Lecture 3
Parameter numerical
summary of the entire
population.
Population all items
of interest.
Example: All vehicles made
In 2004.
Example: population mean
fuel economy (MPG).
Sample a
few
Stat 301 Lecture 4
Parameter numerical
summary of the entire
population.
Population all items
of interest.
Example: All vehicles made
In 2004.
Example: population mean
fuel economy (MPG).
Sample a
few
Stat 301 Lecture 1
First Day
Data Sheet fill out and
bring to lab tomorrow
Syllabus go over
1
The Big Picture
What is statistics all about?
2
The Big Picture
Statistics is about variability!
Recognizi
Stat 301 Final Exam
December 20, 2013
Name: _
INSTRUCTIONS: Read the questions carefully and completely. Answer each question
and show work in the space provided. Partial credit will not be given if w
Stat 301 Lab 8
Group Activity on Multiple Regression
Names of Group Members: _Solution_, _, _
_, _, _
The laboratory 5 assignment looked at data on a random sample of 100 new vehicles for
the 2004 mod