STAT 420
2GR, 2UG
Spring 2017
Homework 2
(Due Friday, February 10, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions. Please include your name (with your last name underlined), and your N
STAT 420
2GR, 2UG
Spring 2017
Homework 4
(Due Friday, February 24, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions.
Instruction: DO select or specify ONE of the following two options:
_
STAT 420
2GR, 2UG
Spring 2017
Homework 3
(Due Friday, February 17, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions. Please include your name (with your last name underlined), and your N
STAT 420
2GR, 2UG
Spring 2017
Homework 1
(Due Friday, February 3, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions. Please include your name (with your last name underlined), and your Ne
STAT 420
2GR, 2UG
Spring 2017
Homework 8
(Due Friday, April 7, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions. Please include your name (with your last name underlined), and your NetID
STAT 420
2GR, 2UG
Spring 2017
Homework 7
(Due Friday, March 31, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions. Please include your name (with your last name underlined), and your NetI
STAT 420
2GR, 2UG
Spring 2017
Homework 6
(Due Friday, March 17, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions. Please include your name (with your last name underlined), and your NetI
STAT 420
2GR, 2UG
Spring 2017
Homework 5
(Due Friday, March 3, by 4:00 p.m.)
Please submit your assignment on paper, following the Guidelines for Homework Write-Ups and
Submissions. Please include your name (with your last name underlined), and your NetID
CANCER
STATISTICS
Purpose of the Project
To examine the Gender and Regional differences by different of type of
Cancer
To examine factors associated with Colon & Rectum and Lung & Bronchus
Cancer
Are Smoking and Drinking increase the chances of develop
Based on the housing prices case-studies, solve the following using
Minitab:
1. Based on the following information, answer 1-4. We know
under
H 0 : 46
vs.
H1 : 46
x 40; s 12; n 16
. We want to conduct a hypothesis test.
2. Construct a 95% confidence inter
Homework #5
Economics 6000
Prof. VanderHart
Due: October 7, 5PM. No Late Papers Accepted.
Directions: Complete the following questions on separate paper. The point values for each
question appear in parentheses. The total number of points for the homework
Homework #2
Fall 2015
1. The number of accidents per week at a hazardous intersection varies with mean 2.2 and standard
deviation 1.4. This distribution takes only whole-number values, so it is certainly not Normal.
(a) Let
x be the mean number of acciden
Homework #4
Economics 6000
Prof. VanderHart
Due: September 28, 4PM
Directions: Complete the following questions on separate paper. Point values are indicated in parentheses.
1. (2 points) For each of the following production functions, plug in the value s
What are the implications and/or consequences of business tax reform in the United States?
by
Tania Biswas
ACCT 5420
Research Paper
Fall 2016
Implications and/or consequences of business tax reform in United States
The business tax system has been a focus
PSY 270 Statistics for Behavioral and Social Sciences
Chapter 3 Homework Z- Scores
Answer the following question using Chapter 3 and the Normal Curve Table in the Aron Text.
Some of the following questions you will need to utilize the formulas for turning
Amygdala Means of Amygdala Difference Scores Squared Deviations
0.43
0.4
0.03
0.0009
0.32
0.4
-0.08
0.0064
0.64
0.4
0.24
0.0576
0.21
0.4
-0.19
0.0361
0.29
0.4
-0.11
0.0121
0.51
0.4
0.11
0.0121
explanation: what these answers mean is that on average the ac
PSY 270 Independent and Dependent T-tests- SPSS
Lab assignment
There are basically two kinds of t-tests. The between-groups
(or independent means) t-test is a statistical test designed to
examine whether means from two different samples are
significantly
PSY 270
Hypothesis Testing Homework
Name:Morgan Wyatt _
Directions: The logic of hypothesis testing is the basis for all of the statistics well
look at for the rest of this class. Below are a number of scenarios that ask you to
identify the populations in
PSY 270 Ch. 6 HW.
1. Define alpha and beta
Alpha- the probability of rejecting the null hypothesis when the null hypothesis is true
Beta- the probability of failing to reject the hypothesis tested when that hypothesis is
false and a specific alternative h
PSY 270 Chapter 2 Homework
Name: Morgan Wyatt
1. Describe and explain the location of the mean, median and mode for the normal curve.
A normal curve is also referred to as a bell-shaped curve. The properties of a normal
curve are that being symmetrical a
PSY 270 Introduction Assignment Ch.1 Lab1
Name: Morgan Wyatt
I. Variables
List each of these variables under the appropriate label.
Stress level, class rank, religion, age, position finished in a race, birth order
position, Depression Level, number of Par
BBBB, Inc.
Balance Sheet
December 31, 2015
Assets
Current Assets
Cash
Inventory
Total Current Assets
Fixed Assets
Land
Net Fixed Assets
$
$ 30,000
30,000
Other Assets
Security Deposit
Total Assets
151,000
8,000
159,000
6,000
$
195,000
Liabilities & Owners
The Fair Trade Alternative
A Social Justice Issue in Less
Developed Countries
Why do producers need Fair Trade?
The Case of Coffee
Over 50% grown by small scale farmers
Lack of direct access to the market
(dependency on middlemen)
Mr. Kamau
20-40 cents
Brazil in the Global
Economy
Review of Core-Periphery
Model
Is Brazil a core or periphery
country?
What characteristics should we
expect Brazil to have?
Context
Brazil is the FIFTH largest country
in the world (area, population).
Which 4 countries are lar
Calculating the 95% and 99% Confidence Intervals
Let's use the 95% and 99% confidence interval examples in the course notes:
The formula is as follows:
Mean of the sample + (t or z critical value)(sample standard deviation / square root of n)
Multiply the
When to perform a z test vs. a t test
=> Under what circumstances do we use a t test? A z test? Please see page 6 of the course
notes: When the population standard deviation is unknown, it has to be estimated by using the
sample standard deviation(s). So
One-Tailed vs. Two-Tailed Tests
Remember that, in looking at the differences between the two groups, if the researcher is
trying to determine if there is an improvement or an increase in the dependent variable being
measured (or a deterioration or a decre
Finding the Critical Value
We only divide alpha by 2 when we are using the table to look up the critical value for a twotailed z test - but not for a one-tailed z test. For example, the critical z value for a two-tailed z
test with an alpha level of .05 i
Should the Critical z (or t) Value be Positive or Negative?
Is the critical z (or t) value + or - ?
The critical value can either be + or -, depending on the direction of the hypothesis . . . for
example, a two-tailed test that only hypothesizes a differe
Standard Deviation: How to Determine if You Have the Population or Sample Standard Deviation
Reading each problem very carefully will help you determine if the population standard
deviation or the sample standard deviation is being given. Sometimes the pr