Homework 2
Submit on Blackboard by noon of Monday February 13th 2017
Question 1
Questions 2
Note: Figures 5.2 and 5.3 can be found on the lecture slides for Chapter 5.
Question 3
Question 4
Question 5
Homework 2
Submit on Blackboard by noon of Monday February 6th 2017
Question 1
Note: Figure 3.1 can be found in Chapter 3 of the textbook or the lecture slides for Chapter 3.
Questions 2
Question 3
Question 4
Question 5
(Next page)
Homework 4
Submit on Blackboard by noon of Monday February 20th 2017
Question 1
Questions 2
Question 3
Question 4
Show your working!
Question 5
Question 6
Homework 5
Submit on Blackboard by noon of Monday February 27th 2017
Note: you may use Excel or some other statistical software to draw graphs for this assignment, or
you may choose to draw them by hand. In either case, you should ensure the scales are
ap
Homework 1
Submit on Blackboard by noon of Monday January 30th 2017
Question 1
Find a news story or meme containing a statistic (or statistics) on the internet or in a
newspaper or magazine. How is the statistic used for the purposes of the meme/story, an
BRM
HW 1
(Answers are in italics)
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
Problems 11.6, 11.10, 11.14, 11.20, 12.10, 12.14, 12.25
11.6 a.The shape of the histogram is a bell curve shape.
b. The center of distribution is 20%. The range is between -60% and 100% returns.
c.About 20-25% of stock owners lost money.
11.10
The data is
15.4 This correlation should be negative because more physical activity in a day should result
in a lower BMI due to the extra physical activity. 3.24% is the variation in BMI among the girls
in the study.
15.14
The regression line is not useful at all at
Problems 19.8, 19.10, 19.22, 20.4, 20.10, 20.16
19.8a. The probability that a randomly chosen student is in the bottom 40% is 0.10. This is
because all the probabilities must add up to 1 so: 1 - (0.40 + 0.30 + 0.20) = 0.10
b. Assign 0-3 for top 20%, 4-6 f
BRM
Spring 2014
Syllabus, Part I
(Part II is at brm.rutgers.edu)
MSIS Department Course 29:623:340
BUSINESS RESEARCH METHODS
Sec 03: TTh 11:30-12:50 PM (1WP- 418)
Sec 04: TTh 1:00 2:20 PM (1WP- 418)
(Rooms subject to change)
(brm syllabus Spr 14.rtf)
Janu
PROBABILITY
The probability of an outcome of a random variable is the proportion of times the outcome would occur in a very long series of experiments. Random Variable: X (in-the-shade-temperature at noontime in degrees Fahrenheit) Probability:
We feel th
V. 1: This is an abridged version of slides used in some BRM lectures. It should not be thought of as a
complete set of notes for the course but only as a reminder of concepts and definitions discussed in the
respective sessions.
INTRODUCTION: Why would a
Chapter 13
Use the following to answer questions 1-3:
Suppose that the Blood Alcohol Content (BAC) of students who drink five beers varies from
student to student according to a normal distribution with mean 0.07 and standard deviation 0.01.
1. The middle
Chapter 4
1. Scotland is considering independence from England. An opinion poll showed that 51%
of Scots favor "independence." Another poll taken at the same time showed that only
34% favored being "separate" from England. The primary reason these results
5. MULTIPLE-CHOICE ITEM TEST BANK
5.1 Part I Questions
Most of these items are taken from exams given at Purdue University and The Ohio State
University. We thank our colleagues Stephen Lalley, George McCabe, Stephen Samuels, and
Dennis Pearl for their co
Chapter 13
Use the following to answer questions 1-3:
Suppose that the Blood Alcohol Content (BAC) of students who drink five beers varies from
student to student according to a normal distribution with mean 0.07 and standard deviation 0.01.
1. The middle
14.4
a. Between -1 and 1
b. Any number
c. Any number
14.5 a. The longer the tail is the more weight it adds to the overall mouse therefore the
correlation should be positive.
b. The correlation wouldnt change if the tail was measured in centimeters.
14.6
4.8
The period between July 1 and August 31 probably had the most ring-no-answers
because that period is during the summer time and people are more likely to be out of their
houses then. A high rate of non-response makes the sample results less reliable b
Problems 6.6, 6.12, 6.16, 7.7, 7.8, 7.17
6.6 a. Take the number of bike accidents on average in the past 3 months. Have a group of
bicyclists ride their bikes with the new headlights for a couple months. Compare the two
numbers to see if the number of acc