CHAPTER TEN
Statistical Inferences about Two Populations
47
ChapterNine
D
M
BApp
1.
Restaurateur Denny Valentine is evaluating two sites, Raymondville and
Rosenberg, for his next restaurant. Prevailing images of the two suburbs imply
that Raymondville res

CHAPTER NINE
Statistical Inference:
Hypothesis Testing for Single Populations
9
Chapter Nine
B
1. Hypothesis testing is derived from the mathematical notion of
_.
M
Term
A.
B.
C.
D.
C
The first step in testing a hypothesis is to establish _.
2.
E
Term
A.

Probability is used to develop knowledge of the fundamental mathematical tools for quantitatively assessing risk. True
The list of all elementary events for an experiment is called the sample space. True
Which of the following statements is not true regar

MS 1023: Business Statistics with Computer Applications I
Quiz 7
Name:
Solutions
Student ID:
Use the following scenario and data for all the questions
About 32% of all the laptop computers sold in an electronics store have hard disks made by Western Digit

MS 1023: Business Statistics with Computer Applications I
Quiz 9
Name:
Solutions
Student ID:
Use the following scenario and data for all the questions
Among the N 16 students taking a graduate statistics class, A 10 are master students and the other N A 6

MS 1023: Business Statistics with Computer Applications I
Quiz 2
Name:
Solutions
Student ID:
The daily sales of specific model of laptop computers at an electronics store are recorded for the last two weeks.
Treat these n 14 observations as a random sampl

MS 1023: Business Statistics with Computer Applications I
Quiz 3
Name:
Student ID:
A department store carries a deep V female formal dress with four sizes labeled as S1 , S2 , S3 and S4 , respectively,
and four colors labeled as C1 , C2 , C3 and C4 , resp

MS 1023: Business Statistics with Computer Applications I
Quiz 6
Name:
Solutions
Student ID:
Use the following scenario and data for all questions
The probability distribution of the number of telephone calls received at customer service of a local bank b

MS 1023: Business Statistics with Computer Applications I
Quiz 4
Name:
Student ID:
The marketing manager of a grocery store observed customers going to the babys section. She found that 62% of all
customers buy buby formula, 52% of all the customers buy d

MS 1023: Business Statistics with Computer Applications I
Quiz 8
Name:
Solutions
Student ID:
Use the following scenario and data for all questions
The average number of customers arriving at a gas station is 33 per hour during lunch hours. Use X to denote

MS 1023: Business Statistics with Computer Applications I
Quiz 1
Name:
Solutions
Student ID:
A random sample of 30 scores is selected from the scores obtained on an online homework of all students taking an
introductory business statistics courses. The sc

MS 1023: Business Statistics with Computer Applications I
Quiz 5
Name:
Student ID:
The rain wipers installed on a specific model of SUVs are from four suppliers. The proportion of wipers provided by
each supplier and the defective rate of each supplier fo

Chapter 1: Introduction to Statistics
1
SOLUTIONS TO SELECTED PROBLEMS IN CHAPTER 1
1.3
Descriptive statistics in recorded music industry -
1)
RCA total sales of compact discs this week, number of artists under contract to a
company at a given time.
2)
to

Question 1
1 out of 1 points
A summary of data in which raw data are grouped into different
intervals and the number of items in each group is listed is called a
frequency distribution.
Selected
Answer:
Answers:
Tru
e
Tru
e
False
Response
Feedback:
See s

One hundred policyholders file claims with CareFree Insurance. Ten of these claims are fraudulent. Claims manager Earl
Evans randomly selects four of the one hundred claims for thorough investigation. If x represents the number of
fraudulent claims in Ear

Chapter 2: Charts and Graphs 1
SOLUTIONS TO SELECTED PROBLEMS IN CHAPTER 2
2.2
a) One possible frequency distribution is the one below with 12 classes and class
intervals of 2.
Class Interval
Frequency
39 - under 41
2
41 - under 43
1
43 - under 45
5
45 -

Chapter 7: Sampling and Sampling Distributions
1
SOLUTIONS TOSELECTED PROBLEMS IN CHAPTER
7
7.1
a)
company.
company.
i.
A union membership list for the
ii.
A list of all employees of the
b)
i.
White pages of the telephone directory for Utica, New York.
ii

Chapter 4: Probability
1
SOLUTIONS TO SELECTED PROBLEMS IN CHAPTER 4
a)
b)
c)
d)
e)
f)
g)
h)
i)
4.2
A = cfw_1, 3, 5, 7, 8, 9, B = cfw_2, 4, 7, 9, and C = cfw_1, 2, 3, 4, 7,
A C = cfw_1, 2, 3, 4, 5, 7, 8, 9
A B = cfw_7, 9
A C = cfw_1, 3, 7
A B C = cfw_1, 2

Chapter 9: Statistical Inference: Hypothesis Testing for Single Populations
1
SOLUTIONS TO SELECTED PROBLEMS IN CHAPTER 9
9.1 a) Two-Tailed
b) One-Tailed
c) One-Tailed
d) Two-Tailed
9.2 a) Correct Decision
b) Type II error
c) Correct Decision
d) Type I er

Coca Cola Case Study
Joshua Ritter
I)
This case study is to determine the efficiency of the
bottling process for the plants in Africa to determine
how close they actually are to the 340ML and 20oz
specification.
II)
The first case study was studying the f

El Savinq screenshot.
. Quiz13$0|utions.pdf 8-!
MS 1023: Business Statistics with Computer Applications I
Quiz 13
Name: Solutions
Student ID:
Use the following scenario and data for all the questions
In a large city. the population proportion of residen