1. A survey by KRC research for U.S News reported that 37% of people plan to spend more
on eating out after they retire. If eight people are randomly selected, determine the
following probabilities.
a). Exactly five people plan to spend more on eating out
Statistics for Business Control & Regression/Forecasting Models
STATUB 103

Spring 2014
Assignment 1
1.
MBS 3.126 page 169
A
0.0375
.0083
0.0458
0.7125
R
B
0.2417
0.9542
0.75
0.25
1
Or
2. A municipal bond service has three rating categories (A, B, and C) and is issued by
city or suburbs. Suppose that 70% of all the issued bonds were A rated,
Exam 1
1. A fastfood restaurant monitors its drivethru service times electronically to ensure that its
speed of service is meeting the companys goals. A sample of 28 drivethru service times
was taken and the stemandleaf display below;
1
6
9
12
14
14
Statistics for Business Control & Regression/Forecasting Models
STATUB 103

Spring 2014
Assignment 2
1. The director of publications for a university is in charge of deciding how many programs to
print for football games. Based on the data, the director has estimated the following probability
distribution for the random variable X= number of
Statistics for Business Control & Regression/Forecasting Models
STATUB 103

Spring 2014
Handout assignment IV
Due date 3/14 /14
1. A bank has determined that the monthly balances of the saving accounts of its
customers are normally distributed with an average balance of $1,200 and standard
deviation of 250. If a sample of 36 customers is sel
Handout assignment III
Due date 2/27/14
1. A survey by KRC research for U.S News reported that 37% of people plan to spend
more on eating out after they retire. If eight people are randomly selected, determine the
following probabilities.
a). Exactly five
1.
R
A
0.0375
0.7125
0.75
B
.0083
0.2417
0.25
0.0458
0.9542
1
Or
2.
Elementary Event
Event 1
Event 2
Event 3
Event 4
Bond1
A
A
A
A
Bond 2
A
A
B
B
Bond 3
A
B
C
A
Event 5
Event 6
Event 7
Event 8
Event 9
Event 10
Event 11
Event 12
Event 13
Event 14
Event 15
Handout assignment I
Due date: 9/13/2013
1. MBS 2.24 page 49
Solution for Handout 1
1.
Use Minitab
Or you can use Box plots
a.
Box pl ot of Va l ue
800
900
1000
1100
1200
1300
Va lue
1400
1500
1600
1700
b.
Box pl ot of Cha nge 1 Y r
0
5
10
Cha nge 1 Y r
1
1.
A bank has determined that the monthly balances of the saving accounts of its customers
are normally distributed with an average balance of $1,200 and standard deviation of 250.
If a sample of 36 customers is selected,
a. What is the probability that t
Statistics for Business Control & Regression/Forecasting Models
STATUB 103

Spring 2014
Handout assignment VII
Due date 11/26/13
1. A manufacturing company is interested in predicting the number of defects that will be produced each
hour on the assembly line. The managers believe that there is a relationship between the defect rate and
the p
Statistics for Business Control Regression and Forecasting Models
STATUB 103

Fall 2014
STATUB.0103.04
Prof. Frydman
November 4, 2014
Solutions to Quiz 3 (B)
(6) Q1) A random sample of 49 New York City (NYC) hotels showed
the mean cost per night of a hotel room to be $273 with the sample standard
deviation of $84.
(2) a) Construct and inter
Exam 1
1. A fastfood restaurant monitors its drivethru service times electronically to ensure that its
speed of service is meeting the companys goals. A sample of 28 drivethru service times
was taken and the stemandleaf display below;
1
6
9
12
14
14
Statistics for Business Control Regression and Forecasting Models
STATUB 103

Fall 2014
STATUB.0103.04
Prof. Frydman
October 16, 2014
Solutions to Quiz 2 (B)
1) The wooden sailboats are built in two small shipyards. The number
of boats constructed per month in shipyard A, denote it by X, is distributed
as
0
1
() 05 05
and the number of boat
Handout assignment I
Due date: 2/11/2014
1. MBS 2.24 page 49
Use Minitab
2. A fastfood restaurant monitors its drivethru service times electronically to
ensure that its speed of service is meeting the companys goals. A sample of
28 drivethru times was
Statistics for Business Control Regression and Forecasting Models
STATUB 103

Fall 2014
STATUB.0103 Statistics for Business Control and Regression Models
Prof. Frydman
December, 2013
Solutions to Final Exam (A)
1) In order to investigate the feasibility of starting a Sunday edition for
a large metropolitan newspaper, information was obtain
Handout assignment IV
Due date 3/14 /14
1. A bank has determined that the monthly balances of the saving accounts of its customers
are normally distributed with an average balance of $1,200 and standard deviation of 250.
If a sample of 36 customers is sel
Homework VI
Due date: 4/4/2014
1. Two placement exams are available that students can take to determine which math class they should
begin with in their freshman year. It is believed that there is no difference in the mean scores that would
be received fo
STATISTICS FOR BUSINESS CONTROL AND REGRESSION MODELS
STATUB 103

Fall 2014
STATUB.0103.04
Prof. Halina Frydman
September 19, 2014
Solutions to Quiz 1(A)
(8) 1) An automobile manufacturer routinely keeps records on the number of finished
cars (passing all inspections) produced per eight hour shift. The data for the last 21
shift
Statistics for Business Control Regression and Forecasting Models
STATUB 103

Fall 2014
STATUB.0103.04
Prof. Frydman
October 16, 2014
Solutions to Quiz 2 (A)
(9) 1) An aerospace company has submitted bids on two separate federal
government defense contracts, A and B. The company estimates that it has
a 60% chance of winning contract A and a
STATUB.0103 Statistics for Business Control and Regression Models
Prof. Frydman
September 12, 2013
Homework 2
(Due date: September 19)
Reading: Chapter 2, Sections 2.12.8 from MBS
Class Notes: Introduction and basic Methods for Describing the Data (all
Handout assignment III
Due date 2/24/15
1. A survey by KRC research for U.S News reported that 37% of people plan to spend
more on eating out after they retire. If eight people are randomly selected, determine the
following probabilities.
a). Exactly five
STATUB.0103 Statistics for Business Control and Regression Models
Prof. Frydman
October 16, 2013
Homework 5
(due October 21)
Reading: Chapter 4: 4.54.6, 4.9 (about Uniform distribution only)
from MBS
Lecture Notes #4 on The Normal Distribution
Exercise
STATISTICS FOR BUSINESS CONTROL AND REGRESSION MODELS
STATUB 103

Fall 2014
STATUB.0103 Statistics for Business Control and Regression Models
Prof. Frydman
December, 2013
Solutions to Final Exam (A)
1) In order to investigate the feasibility of starting a Sunday edition for
a large metropolitan newspaper, information was obtain
STATUB.0103 Statistics for Business Control and Regression Models
Prof. Frydman
September 19, 2013
Homework 3
(due September 26)
Reading: Sections 3.13.6 and 3.8 from MBS
Class Notes #2: Introduction to Probability
Exercises: 3.64 page 153, 3.72 page 1
Statistics for Business Control & Regression/Forecasting Models
STATUB 103

Spring 2014
1. A survey by KRC research for U.S News reported that 37% of people plan to spend more
on eating out after they retire. If eight people are randomly selected, determine the
following probabilities.
a). Exactly five people plan to spend more on eating out
STATISTICS FOR BUSINESS CONTROL AND REGRESSION MODELS
STATUB 103

Fall 2014
STATUB.0103 Statistics for Business Control and Regression Models
Prof. Frydman
December 17, 2013
Final Exam (A)
(Show all of your work)
Happy Holidays!
The questions in Problems 1) and 2) below should be answered using
information in minitab output tha
Statistics for Business Control Regression and Forecasting Models
STATUB 103

Fall 2014
STATUB.0103.04
Prof. Halina Frydman
October 3, 2014
Solutions to Practice Questions for Quiz 2
1) A customer at ShoreBank is called a "frequent ATM user" if he/she
uses ATM (Automated Teller Machine) for a majority of his/her transactions. According to t
Assignment 2
Due date: 2/18/2014
1. MBS 3.126 page 169
2. A municipal bond service has three rating categories (A, B, and C) and is issued by city or
suburbs. Suppose that 70% of all the issued bonds were A rated, 20% of all the issued bonds
were B rated,
Course: Stat UB.103.05 Statistics for Business Control and Regression and
Forecasting
Semester: Spring 2015 ( 1/26/2015 5/11/2015)
Class Hrs: T, R, F 3:30 pm 4:45 pm Class Room: TUC25
Instructor: Arde Shahmaei Email: ashahmae@stern.nyu.edu
Office Hours:
Statistics for Business Control & Regression/Forecasting Models
STATUB 103

Spring 2014
Handout assignment III
1. A bank that offers charge cards to customers studies the yearly purchase amount (in
thousands of dollars) on the card as related to the age, income (in thousands of dollars),
whether the and years of education of the cardholder.
Homework 8 multiple regression
Please complete the following questions from the textbook.
11th ed: 11.2, 11.4, 11.6, 11.8, 11.10, 11.18, 11.22
Plus any 4 of the following from 11th ed: 11.34, 11.40, 11.44, 11.50, 11.54, 11.64, 11.72, 11.100,
11.144
All qu
Statistics for Business Control,
Regression and Forecasting
Random Variables &
Probability Distributions
See Pamphlet for notes on
Hypergeometric Distribution
Instructor: Kevin Brabazon
Learning Objectives
1. Distinguish Between the Two Types of
Random Va
STATUB.0103
Homework Set 6 Fall 2016
COMPLETE ALL QUESTIONS FOR THIS HOMEWORK.
1. Based on a sample of 50 xvalues having mean 35.36 and standard deviation 4.26,
(a)
test at the 0.05 level of significance the null hypothesis
: = 34 versus
H0
the alternat
STATUB.0103 Kevin Brabazon
Topics for the final exam
Simple Regression Readings: all of chapter 11 [chapter 10 in the 11th edition]
Understanding the basic concepts and how to calculate them. Most of the concepts are just
special cases of multiple regres
HW3 Q8 Part a)
For part a) set the summary stats to cumulative probability; set number of trials to 83; set event
probability to 0.11; and click Input constant and set it to 10 [you want at most 10 defective toasters].
This should yield a result of 0.697