Get the Solution Manual for Essentials of Statistics for Business and Economics, 8th Edition by R. Anderson. Solve complex problems and enhance your understanding of statistics with detailed solutions and explanations.
Downloaded by: clintonson | wamalwamayeku@gmail.com
Distribution of this document is illegal
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Chapter 1
Solutions:
1. Statistics can be referred to as numerical facts. In a broader sense, statistics is the field of study
dealing with the collection, analysis, presentation and interpretation of data.
2. a. The ten elements are the ten tablet computers
b. 5 variables: Cost ($), Operating System, Display Size (inches), Battery Life (hours), CPU
Manufacturer
c. Categorical variables: Operating System and CPU Manufacturer
Quantitative variables: Cost ($), Display Size (inches), and Battery Life (hours)
d.
Variable Measurement Scale
Cost ($) Ratio
Operating System Nominal
Display Size (inches) Ratio
Battery Life (hours) Ratio
CPU Manufacturer Nominal
3. a. Average cost = 5829/10 = $582.90
b. Average cost with a Windows operating system = 3616/5 = $723.20
Average cost with an Android operating system = 1714/4 = $428.5
The average cost with a Windows operating system is much higher.
c. 2 of 10 or 20% use a CPU manufactured by TI OMAP
d. 4 of 10 or 40% use an Android operating system
4. a. There are eight elements in this data set; each element corresponds to one of the eight models of
cordless telephones
b. Categorical variables: Voice Quality and Handset on Base
Quantitative variables: Price, Overall Score, and Talk Time
c. Price – ratio measurement
Overall Score – interval measurement
Voice Quality – ordinal measurement
Handset on Base – nominal measurement
Talk Time – ratio measurement
5. a. Average Price = 545/8 = $68.13
b. Average Talk Time = 71/8 = 8.875 hours
c. Percentage rated Excellent: 2 of 8 2/8 = .25, or 25%
d. Percentage with Handset on Base: 4 of 8 4/8 = .50, or 50%
Downloaded by: clintonson | wamalwamayeku@gmail.com
Distribution of this document is illegal
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Data and Statistics
6. a. Categorical
b. Quantitative
c. Categorical
d. Quantitative
e. Quantitative
7. a. Each question has a yes or no categorical response.
b. Yes and no are the labels for the customer responses. A nominal scale is being used.
8. a. 762
b. Categorical
c. Percentages
d. .67(762) = 510.54
510 or 511 respondents said they want the amendment to pass.
9. a. Categorical
b. 30 of 71; 42.3%
10. a. Categorical
b. Percentages
c. 44 of 1080 respondents or approximately 4% strongly agree with allowing drivers of motor vehicles
to talk on a hand-held cell phone while driving.
d. 165 of the 1080 respondents or 15% of said they somewhat disagree and 741 or 69% said they
strongly disagree. Thus, there does not appear to be general support for allowing drivers of motor
vehicles to talk on a hand-held cell phone while driving.
11. a. Categorical
b. 295 + 672 + 51 = 1018
c. (295/1018)100 = 29%
d. Support against; (672/1018)100 = 66% said they would vote against the law.
12. a. The population is all visitors coming to the state of Hawaii.
b. Since airline flights carry the vast majority of visitors to the state, the use of questionnaires for
passengers during incoming flights is a good way to reach this population. The questionnaire
actually appears on the back of a mandatory plants and animals declaration form that passengers
must complete during the incoming flight. A large percentage of passengers complete the visitor
information questionnaire.
Downloaded by: clintonson | wamalwamayeku@gmail.com
Distribution of this document is illegal
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller academicexpert. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.99. You're not tied to anything after your purchase.
