Assignment-3 (Chs. 9, 10 and 12)
Due by Midnight of Sunday, April 6th, 2014: (Use dropbox 3): Total 75 points
True/False (One point each)
Chapter 9
1. The manager of the quality department for a tire manufacturing company wants to know the
average tensile
Instructions for Chapter 12: Chi-Square Test
by Dr. Kishor Guru-Gharana
Introduction
In the previous Chapters we learned how to build confidence intervals and perform
tests of hypotheses using Z-distribution (Standard Normal Distribution) and
students t-
578 Assignment-4 (Chs. 9, 10 and 12): solutions due by midnight of Sunday,
April 5, 2013: drop box 4): 70 points (show work when possible)
True/False (1 point each)
Chapter 9
1. The manager of the quality department for a tire manufacturing company wants
BA 578 Assignment-Sol- due by Midnight (11:59pm) Sunday, Feb 2nd , 2014(Chapters 1, 2,
3 and 4): Total 75 points (You have to show your work in Essay type questions but not in
T/F or Multiple choices questions)
True/False (One point each)
Chapter 1
1. The
BA 578 Assignment-Sol- due by Midnight (11:59pm) Sunday, Feb 2nd , 2014(Chapters 1, 2,
3 and 4): Total 75 points (You have to show your work in Essay type questions but not in
T/F or Multiple choice questions)
True/False (One point each)
Chapter 1
1. The
1
Instructions for Chapter 10 : Statistical Inferences Based On Two Samples
by Dr. Kishor Guru-Gharana
(Skip section 10.5 in the book)
1. Introduction
In the previous chapter we learned how to test claims or hypotheses or assumptions about
population mean
BA 578 Assignment-Sol- due by Midnight (11:59pm) Sunday, Feb 2nd , 2014(Chapters 1, 2, 3
and 4): Total 75 points (You have to show your work in Essay type questions but not in T/F
or Multiple choice questions)
True/False (One point each)
Chapter 1
1. The
Assignments2 solutions: Due by Midnight of Sunday March 2nd, 2014
(drop box of week 2) (Chapters 5, 6, 7 and 8) Total 75 points.
True/False (1 point each)
Chapter 5
1. If the probability of success is 0.4 and the number of trials in a binomial distributio
1
Guidelines For Midterm Test, BA 578 W: Fall 2013
Window period: Thursday, March 6th, 2014, 8 a.m. Sunday March 9th, 11:59
p.m.
Time limit Six hours (you can take the Exam only once at one stretch)
The test will consist of 17 True/False type (4 points ea
1
Instruction for Chap.13: Bivariate Linear Regression Analysis
by Dr. Kishor Guru-Gharana
(Marked as Ch 14 in the 7th ed.)
(You can revisit and review section 3.4 in Ch. 3 which we skipped)
Introduction
Thus far we learned how to describe and summarize d
1
Instructions for Chapter 10 : Statistical Inferences Based On Two Samples
by Dr. Kishor Guru-Gharana
(Skip section 10.5 in the book)
1. Introduction
In the previous chapter we learned how to test claims or hypotheses or assumptions about
population mean
Instructions for Chapter 14: Multiple Regression Model
by Dr. Kishor Guru-Gharana
(Marked as Ch 15 in the 7th ed.)
Introduction
In previous Chapter we learned about bivariate Regression with one dependent and one
independent (or explanatory) variable. In
Instructions for Chapter 9: Hypothesis Testing: One Sample
by Dr. Kishor Guru-Gharana
Hypothesis Testing is the statistical procedure applied to compare the assumptions or claims
made about the population parameters with the corresponding results of the s
"You tell me and I forget, you teach me and I remember, you
involve me and I learn"
Benjamin Franklin
"Online Teaching is all about active student involvement and learning supported by interactions
with the instructor and fellow students"
Kishor Guru-Ghar
1
Instructions for Chapter 4
prepared by Dr. Guru-Gharana
Experiments, Sample Space and Probability
An Experiment is a process that leads to the occurrence of one and only one of
several possible results or observations. Each possible result or observatio
BA 578: Chapter-2 Instructions: Describing Data
by Dr. Kishor Guru-Gharana
Grouped data: The raw data can be very large. Looking at the raw data it may be difficult to
see or understand any pattern. Therefore it helps in our understanding if the data is o
BA 578: Chapter-1 Instructions: Introduction & Definitions
By Dr. Kishor Guru-Gharana
Why Statistics? Like mathematics the tools of Statistics can be universally applied
to any field which involves numbers and values which depend on chance or have
associa
1
Instructions for Chapter 3
Prepared by Dr. Guru-Gharana
I will omit the sections on Box-and-Whiskers, Covariance, Correlation, and the Least Squares.
We will come back to some of these topics (except Box-and-Whiskers) when we start Chapter 13
on Regress
1
Instructions for Chapter 7: Sampling Distributions
by Dr. Guru-Gharana
Why Sample?
In any study our goal is always to learn about the population through knowledge of its
parameters such as its mean, variance, skewness, etc. If so, why dont we (generally
1
Instructions for Chapter 6: Continuous Probability Distributions
Prepared by Dr. Kishor Guru-Gharana
In this Chapter I want you to focus on Normal Distribution only, because it is the universally
applied Continuous Probability Distribution (almost 99% o
1
Instructions for Chapter 5- by Dr. Guru-Gharana
The Binomial distribution
Random Variable: Any variable whose numerical values depend on chance, or have
probabilities associated.
Example: In a toss of two coins the sample space S=
and the outcomes have
1
Instructions for Chapter 8: Confidence Intervals
by Dr. Guru-Gharana
Section A: Confidence Intervals for the Mean
Introduction
We have already discussed that the sample mean is the estimators of the population mean .
Any value calculated from a sample f
Assignment-3: (Chs. 7 and 8): Due by Midnight of Sunday, March 3 2013:
Total 70 points (must show work where possible)
True/False (1 point each)
Chapter 7
1 A sample size of 900 is not large enough to conclude that the sampling
distribution of p is a norm
1
Assignments2: Due by Midnight of Sunday March 2nd, 2014
(Chapters 5, 6, 7 and 8) Total 75 points.
True/False (1 point each)
Chapter 5
1. If the probability of success is 0.4 and the number of trials in a binomial
distribution is 150, then its standard d
Assignment-3 (Chs. 9, 10 and 12)
Due by Midnight of Sunday, April 6th, 2014: (Use dropbox 3): Total 75 points
True/False (One point each)
Chapter 9
1. The manager of the quality department for a tire manufacturing company wants to know the
average tensile
True/False
1. In an experiment involving matched pairs, a sample of 14 pairs of observations is collected.
The degree of freedom for the t statistic is 12.
FALSE
2. In testing the difference between two means from two independent populations, the sample
s
Multiple Choice
1. In order to test the effectiveness of a drug called XZR designed to reduce cholesterol levels,
20 heart patients' cholesterol levels are measured before they are given the drug. The same 20
patients use XZR for two continuous months. Af