BUSSTAT207 Exam 1 Spring 2016
Name_
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1)
When a marketing manager surveys a few of the customers for the purpose of drawing a conclusion about
the entire
Exam 1 Study Guide
Chapters 1 & 2
About the Exam:
Chapters 1 and 2
10 points
10 questions (some have multiple parts partial credit will be awarded)
75 minutes
Open book, open note, Excel, StatCrunch closed to computer resources and individuals
One attempt
Wilson Manufacturing
Case Study
*This is a group project. You only need to turn in one document for your group
Ken Wilson had done it all at Wilson Manufacturing, a company founded by his grandfather 63 years ago.
Among his many duties, Ken oversaw all th
Wilson Manufacturing
Case Study
What is influencing the differences
in production output?
Number of employees
Age of plant
Product Mix (A=0, B=1)
Shift (Day=0, Night=1)
Regression Equation Used
# of Employees: +8.873
Age of Plant: -6.168
Product Mi
BusStat 208
Chapter 10 Two Population Means and Proportions
1. The Wilcox Company sells breakable china through a mail-order system that has been very
profitable. One of its major problems is freight damage. It insures the items at shipping so
packaging i
Question 1
Independent random sampling from two normally distributed populations gives the results below. Find
a 95% confidence interval estimate of the difference between the means of the two populations.
68
35
385
355
Conf Lvl:
Pop. #
x
y
=
=
Question 2
conf lvl
z-score
80%
1.28
90%
1.645
95%
1.96
99%
2.575
Independent random sampling from two normally distrubuted populations gives the results below. Find a
99% confidence interval estimate of the difference between the means of the two populations.
n-x
n
1
Business Statistics 208
Professor Moore
Final Project
10 July 2014
Home Mortgage Interest Rates
Throughout the semester we have learned many different concepts that help businesses make
the right decisions based on the proper reports and gathering of da
Patrick Wiseman
Multiple Regression II
BUSSTAT 208
Summer, 2013
1. Case 15.5 Wendell Motors. The data file Wendell Motors is available under Course Documents.
You should, at a minimum complete the following:
a. Develop a correlation matrix.
Expedited Ship
Problem Set 3
BusStat 208
Summer, 2013
1.
Patrick Wiseman
The manager of an assembly line in a clock manufacturing plant decided to study how different speeds of the
conveyor belt affect the rate of defective units produced in an 8-hour shift. To examine
Problem Set 3
BusStat 208
Summer, 2013
1.
The manager of an assembly line in a clock manufacturing plant decided to study how
different speeds of the conveyor belt affect the rate of defective units produced in an 8-hour
shift. To examine this, he ran the
Boise State University
Examination |
BUSSTAT 208Summer 2013
This is a closed book, closed-note examination. You
may use a calculator, you may also reference
statistical tables and a formula sheet.
NAME 1. Suppose a random sample of 288 teachers in Nevad
EXAMINATION 2
Business Statistics 208
Summer, 2013
This is a closed-book/closednotes examination. You are allowed to
reference a formula sheet and the statistical tables from your book.
A calculator is also allowed. Record your answers in the spaces
provi
SUMMARY OUTPUT
Regression Statistics
Multiple R 0.9152036
R Square 0.8375977
Adjusted R 0.8172974
Square
Standard Error
0.0702435
Observations
19
Admissions
VIF
6.1575479
ANOVA
df
Regression
Residual
Total
SS
MS
F
Significance F
2 0.4071695 0.2035847 41.2
Cost: the expedited cost of the shipment in dollars.
Distance: the distance the order is shipped.
Weight: the weight of the shipment in pounds.
Holiday: Yes, if the order is shipped on a holiday. No, if it is not.
Expedited
Shipping
Cost
$519.02
$521.31
$
SUMMARY OUTPUT
Regression Statistics
Multiple R 0.954913
R Square 0.911859
Adjusted R Square
0.906963
Standard Error
501.4952
Observations
20
#NAME?
#NAME?
ANOVA
df
Regression
Residual
Total
SS
MS
F
Significance F
1 46833540.896311 46833540.9 186.2188
0.0
Forecasting-1-The Goodie Candy Bar Company is a family-operated company in West Virginia. The table below shows annual sales for the last 6 years.
Yr
1
2
3
4
5
6
Ann. Sl
300,000
330,000
345,000
370,000
390,000
420,000
The following linear trend model was
Correlation Example
The following information taken from the 1998 Annual Report of Baldor Electric Company shows net
sales and working capital (in thousands of dollars) for the years 1988-1998.
Year
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
N
Problem Set 1
ANOVA Problems
Due Date 6/14/2012
1. A medical researcher decided to compare several over-the-counter sleep
medications. People who had trouble sleeping came to the researchers sleep
laboratory and were randomly assigned to take either a pla
Uniform and Normal Review
1. A newspaper reporter, collecting data for a feature article on her state lottery system, has
found the 200 digits most recently selected to be distributed as shown below. Based on
this information, and using the 0.10 level of
At a recent Beach Boys concert, a survey was conducted that asked a random sample of
eleven people their age and how many concerts they have attended since the first of the
year. Assuming you wished to predict the number of concerts attended based upon th
Constructing a Confidence Interval for a Normal Distribution
Finding Critical Numbers for Confidence Intervals
Confidence intervals can be used to estimate the proportion of a
population who have a particular attribute
Table A-2
NEGATIVE z Scores
z
.00
.0