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
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 #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
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
NAME: _
STAT 427
Prof. Goel
Midterm I
Spring, 2007
MWF 9:30 - 10.20
REMARKS:
This is a closed book examination. However, you are allowed to use your own
calculator as well as two (8.5 x 11 two-sided) crib-sheets.
There are four problems worth a total of
Stat 427
NAME_solutions_
Exam 1
Professor Berliner; WI 2011
Exam Score: _/100 points
Part I Score: _/40 points
Fill-in the blanks: Each question is worth 4 points (no partial credit)
1. The _sample space_ of an experiment is the set of all possible
outcom
NAME: Solution to Midterm-1, SP2011
(10 x 4 = 40 points)
Question 1
Special Instructions for this question: You DO NOT have to show work for (a) through (e).
Write the correct choice (A/B/C/D) inside the box on the right hand side. Any scratch work will
n
Statistics 427-SP 2011
Midterm II - Solution
Note: Answers to all versions of a question are provided here.
Question 1 (6x2.5 points)
Special Instructions for this question: You DO NOT have to show work for (a) through (e).
Just fill in the blanks. Any sc
Solution
Homework Assignment # 1
SP 2011
Dr. Goel
A1 cfw_ A2 A3
Note that the above event can also be expressed as
[ A1 cfw_A2 A3 ] [ A2 cfw_A1 A3] [ A3 cfw_A1 A2 ]
Remark for d: you may calculate P(at most two errors)=P(no error)+P(1 error)+P(2
errors)
STAT 427
Home Work Assignment #2
Dr. Goel
Solution
Spring 2011
REMARK:
In part c, P exactly one P( A1
A2 '
A3 ') P( A1 '
A2
A3 ') P( A1 '
A2 '
A3 )
E. P(M| SS)= P(M and SS)/P(SS)
=(.08+.07+.12)/( .08+0.07+0.12+0.04+0.02+0.05+0.03+0.07+0.08)
=0.27/0.56=0.5
Solution
Homework Assignment # 3- Chapter 3
6.
SP 2011
Dr. Goel
Possible X values are 1, 2,(all the positive integers)
Possible samples: S1=(L) each with X=1; S2=(RL,or AL) each with X=2;
S3=(RRL, RAL, ARL, AAL) each with X=3 and
S4=(RRAL, RAAL, AARL, RAR
Solution
SP 2011
Homework Assignment # 4- Chapter 3
Dr. Goel
30.
36.
Let H(X) denote the possible payment by the company, then
EH ( X ) 0 0.8 0.1 (1000 500) 0.08 (5000 500) 0.02 (10000 500) 50 360 190 600
Thus, in order to maintain the expected profit to
Solution
SP 2011
Homework Assignment # 5- Chapter 3 and 4
Dr. Goel
3.68
3.82
3.86:
4.2
d, if k>-5 and k+4<5, i.e, -5<k<1, then
P(k X k 4)
k 4
k
1
dx 0.4
10
If k<-5, then P(k X k 4)
k 4
5
1
k 9
dx
10
10
1
5k
dx
k 10
10
P(k X k 4)
If k>1, then,
5
4.4
(
Solution
SP 2011
Homework Assignment # 6- Chapter 4
Dr. Goel
Remark: When calculating P(X<A), where X follows a normal distribution with mean=a, std=b,
the formula is P(X<A) = P(X-a)/b<(A-a)/b). Since (X-a)/b follows the standard Normal(0,1),
P(X<A) = P(Z
Solution
SP 2011
Homework Assignment # 7- Chapter 5
Dr. Goel
1.
a.
P(X = 1, Y = 1) = p(1,1) = .20
b.
P(X 1 and Y 1) = p(0,0) + p(0,1) + p(1,0) + p(1,1) = .42
c.
At least one hose is in use at both islands.
P(X > 0 and Y > 0) = p(1,1) + p(1,2) + p(2,1)
+ p
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
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
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
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
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
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 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 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 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 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 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 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
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 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
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