Chapter 1
Individuals - the objects described by a set of data. Individuals may be people, but they may also be animals or
things.
Variable - any characteristic of an individual. A variable can take different values for different individuals.
Observationa
Business Research Methods
Sample Exam I (Ch1-Ch9)
Spring 2016
Total: 20 points
1 Multiple-Choices
1. In a(n)
is a subset of subjects from the population.
(A) census
(B) sample
(C) individual
(D) population
2. In a table of random digits,
(A) each pair of
Business Research Method
Final Exam
Spring 2016
Name:
Please write your answers here:
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1
Use the following to answer questions 1-5. Suppose you h
April 11, 2017
Homework 6 (Ch19-Ch20)
Chapter 19- slide 12, example 5
Morris survives five years in 4 of 10 repetitions.
Chapter 20- slide 14, exercise 20.2
The player shots 45% of the field-goals he attempted which means 0.45.
E(X) = np
n = the number of
April 4, 2017
Homework 5 (Ch17-Ch18)
17.23 An unenlightened gambler.
a) The gambler is wrong because in the short run, the number of times that red and black
occurs may not be equal to the number of time that black occurs. The roulette wheel has
no memory
BRM Review Midterm 2
CHAPTER 10: Graphs Good and Bad
Data tables may be used to (Organize, summarize, and present data.) the info.
Data tables
Clearly labeled
Main heading and DATE
Labels for variables and units ex: Level of education- number of persons-p
1.Polling women. A New York Times Poll on womens issues interviewed
1025 women randomly selected from the United States, excluding Alaska and
Hawaii. The poll found that 47% of the women said they do not get enough
time for themselves.
(a) The poll announ
HW2 due date:Oct 10th
March 7, 2015
1.Raising pay. A school system employs teachers at salaries between $30,000
and $60,000. The teachers union and the school board are negotiating the form
of next years increase in the salary schedule. Suppose that every
HW4 due on May 4th
May 2, 2015
1.You are trying to develop a strategy for investing in two different stocks.The
anticipated annual return for a $1000 investment in each stock under four different economic conditions has the following probability distribut
HW3
April 16, 2015
1.Suppose two dice are tossed.For each die,it is equally likely that 1,2,3,4,5
or 6 dots will appear.
(a)What is the probability that the sum of numbers showing up on the pair of
dice is 4 or 9?
(b)What is the probability that the sum o
January 31, 2017
Homework 1
1) Exercise 1.15 Alcohol and Cancer in Women
a) No, this is not an experiment because there is not treatment impose instead this is an
observational study, which observes individual, in this case the 1.28 million women aged 506
February 7, 2017
Homework 2
1) Exercise 5.3 Decline in SAT Math scores
This is not an experiment because the officials of the College Board did not intentionally
try to influence the test scores. This is an observational study because the Officials
of Col
Assignment 2 (37 Points)
Chapters 4 9
Spring 2011
Stat 051
Name_
Directions: Read each question carefully and answer as clearly as possible. You may choose to place your answers on a
separate sheet of paper if you need more space. Staple these papers to t
James Durkin
BRM HW 5
October 27, 2016
14.26
a.) Rachel should invest in small cap stocks in order to diversify her portfolio more
since there is a smaller correlation (0.21) between her municipal bonds and small
cap stocks, as opposed to the .50 correlat
Business Research MethodsHints to Homework 3
Fall 2016
3.1 (15 points) An urn contains 5 red balls and 3 blue balls. A person draws out two
balls consecutively from the urn. If the second ball is blue, what is the chance that
the first ball is red?
First
Kimberly Brito
Steven Basantes
Business Research Methods
7 February 2017
Ch.5-6 Homework
Exercise 5.3
The conclusion is not a result of an experiment. The officials of College Board did not try to
deliberately influence the results by imposing treatment.
Kimberly Brito
Steven Basantes
Business Research Methods
31 January 2015
Ch1-4 Homework
Exercise 1.15
a) This is not an experiment. In an experiment, I aim to change behavior by imposing
treatment on a sample of people, and then, I expect and record a res
Practice Final Exam
Business Research Methods
Fall, 2015
Question 1.
We are investigating people like to shop at big box stores like Walmart or at speciality convenience/neighborhood stores. Let
p be the sample proportion of the people who prefer to shop
BRM- Fall 2015
Extra Credit Assignment
Note: The submission of this assignment is optional. It will not affect your
grade negatively if you chose not to submit it. I will grade this assignment
after the final exa
Exam I Review - Math 119 Basic Calculus
Name_
1) Let f(x) =
1
1
, and g(x) =
x -1, -2. Calculate g(f(x).
x+1
x+2
A)
x+1
x+2
B)
x+1
3
,x2x + 3
2
C)
x
3x + 2
D)
x+1
3x + 2
1)
E) none of these
2) Use the quadratic formula to find the zeros of the function f(
April 24, 2017
Homework 7 (Ch21-Ch22)
21.7 Gun Control
a) The population proportion is the true proportion of all adults who think that there
should be a law to ban the possession of handguns expected by the police and
other authorized persons.
b) Formula
Paulo Seabra
Business Research Methods
Section 6
Question 1:
a) Personalized interview because its the best way to get information of why
residents chose to live there. The interviewer wants to know more behind the
reasoning of their choice; this gives th