Monica Thomas
MATH533: Applied Managerial Statistics
Course Project Part A
Professor Ferrell
Introduction
AJ DAVIS is a department store chain. They have many credit customers and want to find out more
information about these customers. Samples of 50 cred
Week 6 Homework and Quiz
Question 1
a.) The equation of a straight-line model is y=Bo + B1x + E Option d
b.) Y = 271 0.723x
c.) Option b Since a drive with distance 0 yards is outside the range of the sample data, the yintersect has no practical interpret
Week 7 Homework and Quiz
Question 1
a.) Y = 1.844 + 01745x1 + 0.00014x2
b.) B1 = Option b - we estimate the mean number of crashes per 3 years will increase by B for each
additional mile of roadway, holding AADT constant.
B2 = Option b we estimate the mea
Keller Graduate School of Management
MATH-533 Applied Managerial Statistics
Course Project: Part C
1.) Below is a scatterplot for the dependent (Sales) versus independent (Calls).
2.) The equation of the best fit line, which describes the relationship bet
MATH 533 DeVry (Applied Managerial Statistics) Course Project;
AJ Davis Department
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AJDAVISisadepartmentstorechain,whichhasmanycreditcustomersandwantstofindoutmoreinformation
aboutthesecustomers.Asampleof50creditcustomersisselectedwithdatacollecte
Introduction
AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information
about these customers. A sample of 50 credit customers is selected with data collected on the following five
variables:
1.
LOCATION (
Modified:12/5/2013 5:53 PM
The survey done by the wall street journal studied subjects that
the sample used in Kleenex diary assumed that there is
minimum error indicating the probability people that had the
cold virus used 60 tissues in each box. The com
Final :
Q1 :
Stat >basic > descriptive stat option show all
Find: Mean , Sd : S, Variance: S2, Mode , medium >
Standard deviation: is the best cz it uses all of the values in the calculation . it indicates how spread out the data
are , and it is in the sa
Case: Statistics in Action: Diary of a Kleenex User (graded)
Hypothesis Testing
Class: Our goal with hypothesis testing is to determine if a claim regarding a population may be
correct. The answer to this question depends on many factors, such as: 1) the
12/24/2013
Math 131
Table of Contents
Math 131 Notes
Math 131 Notes. 1
Unit 1 Descriptive Statistics & Basic Probability. 1
Unit 2 Probability & Probability Distributions. 18
Unit 3 Inferential Statistics. 32
1
12/24/2013
Math 131
Unit 1
Unit 1 Descriptiv
Final :
Q1 :
Stat >basic > descriptive stat option show all
Find: Mean , Sd : S, Variance: S2, Mode , medium >
Standard deviation: is the best cz it uses all of the values in the calculation . it indicates how spread out the data
are , and it is in the sa
Q7 : Find intervals 95 for regrestion :
Stat>regrestion>general regression >
1. Use the response : what we doing our calcation based on
2. Fill out the model : what we need to find
3. Go to prediction and fill out the vale
4. Mark prediction limits and co
Final Exam - Final Exam
Time Remaining:
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Page 1
Question 1. 1. (TCO A) An assembly line worker samples 20 items off the line every hour and
measures the width of each item (in units of inches). The results for one such hour are given
here.
13.8
Week 2: Probability Concepts and
Distributions - Discussion
This week's graded topics relate to the following Terminal Course Objectives (TCOs):
B
Given a managerial problem, utilize basic probability concepts, and standard probability distributions, e.g.
Week 7: Multiple Linear Regression Discussion
This week's graded topics relate to the following Terminal Course Objectives (TCOs):
E
Given a managerial problem and accompanying data set, for which regression analysis - simple or multiple is appropriate, f
Week 6: Simple Linear Regression Discussion
This week's graded topics relate to the following Terminal Course Objectives (TCOs):
E
Given a managerial problem and accompanying data set, for which regression analysis - simple or multiple is appropriate, fit
Week 5: Hypothesis Testing II: One Sample
Hypothesis Tests - Discussion
This week's graded topics relate to the following Terminal Course Objectives (TCOs):
D
Given a managerial problem and accompanying data set, for which the test of an hypothesis is app
Week 4: Hypothesis Testing I: Basics and
Confidence Intervals - Discussion
This week's graded topics relate to the following Terminal Course Objectives (TCOs):
C
Given a managerial problem and accompanying data set, for which application of a confidence i
Week 3: The Normal Distribution, Sampling
Distributions - Discussion
This week's graded topics relate to the following Terminal Course Objectives (TCOs):
B
Given a managerial problem, utilize basic probability concepts, and standard probability distributi
The probability of winning or losing is 1 in 3 prior to opening the curtain C, therefore 1/3 or
33% chance. After curtain C is opened, it becomes 50:50 or half chance of winning or losing.
The best strategy is to guess or go with one's instinct, after all
Week 1: Data Organization and Analysis Discussion
This week's graded topics relate to the following Terminal Course Objectives (TCOs):
A
Given a managerial problem and accompanying data set, construct graphs (following principles of ethical
data presentat
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Trying to
caculate by
Sudan Khan
using formula
12/7/2013 9:09:31 PM
_+
_+
_
x - 1.96 Q_ = x
- 1.96 Q_/ \/ n
x
x
When I tried to use the formula that x-bar plus or minus 1.96 times the standard deviation
equals x-bar plus