Statistical Decision Analysis and Management Science
BNAL 306

Spring 2013
LP Homework Set 2
Solutions
1. Use QM software to solve problem 1 from HW 1.
a. What is the optimal way to plant crops?
i. Plant 3 acres of corn and 2.8 acres of wheat.
b. How much revenue can be produced?
i. $370
c. If eight acres of land were available,
Statistical Decision Analysis and Management Science
BNAL 306

Spring 2013
BNAL 306 Midterm Exam 1
TakeHome Part
Instructions
You are required to complete the questions independently by yourself. You are allowed to refer
to the textbook, notes, or course materials posted. You are strictly not allowed to seek help from
others. Y
Linear Programming III
Breadco Bakeries bakes two kinds of bread: french and sourdough. Each loaf of french
bread can be sold for 36 cents and each loaf of sourdough bread for 30 cents. A loaf of
french bread requires 1 yeast packet and 6 oz of flour; sou
Statistical Decision Analysis and Management Science
BNAL 306

Spring 2013
LP Problems I
Modeling
You should attempt these problems in the order in which they are given. These problems
will be used in subsequent homework sets for sensitivity analysis.
From Text: page 31 3, 5, 9. For part b in each problem, only graph the feasibl
LP Problems I
Modeling Part I
You should attempt these problems in the order in which they are given. These problems
will be used in subsequent homework sets for graphing and sensitivity analysis.
From Text: page 31 3, 5, 9. Solutions to these 3 problems
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
Chapter 14 Quiz BNAL 306
Question 1
10 out of 10 points
In a multiple regression problem involving two independent variables, if b1 is computed
to be +2.0, it means that
Answer
Selected Answer:
Correct
Answer:
the estimated mean of
of X
Question 2
10 out
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
Chapter 13 Quiz BNAL 306
Question 1
10 out of 10 points
The Yintercept (b0) represents the
Answer
Selected Answer:
Correct Answer:
predicted value of
Question 2
10 out of 10 points
The slope (b1) represents
Answer
Selected Answer:
Correct Answer:
the es
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
Chapter 12 Quiz BNAL 306
Question 1
10 out of 10 points
If we use the X2 method of analysis to test for the differences among 4 proportions, the
degrees of freedom are equal to
Answer
Selected
Answer:
3.
Correct Answer:
3.
Question 2
10 out of 10 points
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
Chapter 9 Quiz BNAL 306
Question 1
10 out of 10 points
If an economist wishes to determine whether there is evidence that mean family income
in a community exceeds $50,000
Answer
Selected Answer:
Correct Answer:
a onetail test should be utilized.
Questi
LP Problems I Part 2 Solving, graphing, and more models
9. A post office requires different numbers of fulltime employees on different days of
the week. The number of fulltime employees required on each day is given in the
table below. Union rules state
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
Chapter 11 Quiz BNAL 306
Question 1
10 out of 10 points
In a oneway ANOVA, if the computed F statistic is greater than the critical F value you
may
Answer
Selected Answer:
Correct Answer:
reject
Question 2
10 out of 10 points
When would you use the Tuke
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
Chapter 10 Quiz BNAL 306
Question 1
10 out of 10 points
The t test for the difference between the means of 2 independent populations assumes
that the respective
Answer
Selected Answer:
Correct Answer:
populations are approximately normal.
Question 2
10 o
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
Chapter 9 Review
1. In an article it was claimed that the typical supermarket trip takes a mean of 22
minutes. In an effort to test this claim, you select a random sample of 30 shoppers.
The mean shopping time for this sample was 25.36 minutes with a stan
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
What test would you use?
Directions: Select the appropriate test for each of the following. Your choices are
1 sample t test, 2 sample t test, paired sample t test, 1 sample proportion or 2
sample proportion. Also give the null and alternative hypothesis
Statistical Decision Analysis and Management Science
BNAL 306

Spring 2015
Method Condensed Regular
traditional
26
34
traditional
18
28
traditional
27
24
traditional
24
21
traditional
25
35
traditional
19
23
traditional
21
31
traditional
20
29
traditional
21
28
traditional
18
26
online
27
24
online
21
21
online
29
16
online
32
1
Statistical Decision Analysis and Management Science
BNAL 306

Spring 2015
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Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
BNAL 306 WORKSHEET,
Chapter 10
Please read chapter 10 sections 10.1, 10.2, and 10.3, and answer the questions
below.
Notes:
In section 10.1, you need to read pages 366371, but will NOT have to
work any pooled problems by hand; you just need to know what
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
James Yang
01/18/2016
BNAL 306
Two Sample Tests Assignment
Problem 5:
1. H0: u = 0
H1: u 0
2. = .01
n = 15
df = n 1 = 15 1 = 14
Critical Value = t.01,14 = 2.977
3. Collect Data
4. Compute Test Statistic:
1/18/2016 2:00:37 PM
Welcome to Minitab, press F1
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
2/29/2016 2:41:29 PM
Welcome to Minitab, press F1 for help.
Regression Analysis: SALES ($000) versus RADIO ADVERT, NEWSPAPER AD
The regression equation is
SALES ($000) = 156 + 13.1 RADIO ADVERTISING ($000)
+ 16.8 NEWSPAPER ADVERTISING($000)
Predictor
Co
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
2/18/2016 10:24:36 PM
Welcome to Minitab, press F1 for help.
Results for: Warecost.mtw
Regression Analysis: DistCost versus Sales, Orders
The regression equation is
DistCost =  2.73 + 0.0471 Sales + 0.0119 Orders
Predictor
Coef SE Coef
T
P
Constant
2.7
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
BNAL 306 OBJECTIVES
Hypothesis Testing Review (Chapter 9)
It is expected that you be able to apply the following objectives as a review from BNAL 206.
You should install minitab and use it to answer the appropriate types of problems. You will NOT
be expec
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
BNAL 306 WORKSHEET,
Chapter 11
(Section 11.1 only)
1. What is the purpose of oneway Analysis of Variance (ANOVA)
Comparing more than 2 sample means
To test for differences among the means of several groups
2. What is the test statistic used for oneway
Statistical Decision Analysis and Management Science
BNAL 306

Fall 2013
BNAL 306 WORKSHEET
Chapter 12
(12.1 12.3)
1.
What is the purpose of a contingency table?
Useful in situations comparing multiple population proportions
Used to classify sample observations according to two or more characteristics
AKA: crossclassificat