Bundle: An Introduction To Statistical Methods And Data Analysis, 7th + Student Solutions Manual
7th Edition
ISBN: 9781337371902
Author: R. Lyman Ott, Micheal T. Longnecker
Publisher: Cengage Learning
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Chapter 1.6, Problem 5E
During the 2004 senatorial campaign in a large southwestern state, illegal immigration was a major issue. One of the candidates argued that illegal immigrants made use of educational and social services without having to pay property taxes. The other candidate pointed out that the cost of new homes in their state was 20–30% less than the national average due to the low wages received by the large number of illegal immigrants working on new home construction. A random sample of 5,500 registered voters was asked the question, “Are illegal immigrants generally a benefit or a liability to the state’s economy?” The results were as follows: 3,500 people responded “liability,” 1,500 people responded “benefit,” and 500 people responded “uncertain.”
- a. What is the population of interest?
- b. What is the population from which the sample was selected?
- c. Does the sample adequately represent the population?
- d. If a second random sample of 5,000 registered voters was selected, would the results be nearly the same as the results obtained from the initial sample of 5,000 voters? Explain your answer.
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Examine the Variables: Carefully review and note the names of all variables in the dataset. Examples of these variables include:
Mileage (mpg)
Number of Cylinders (cyl)
Displacement (disp)
Horsepower (hp)
Research: Google to understand these variables.
Statistical Analysis: Select mpg variable, and perform the following statistical tests. Once you are done with these tests using mpg variable, repeat the same with hp
Mean
Median
First Quartile (Q1)
Second Quartile (Q2)
Third Quartile (Q3)
Fourth Quartile (Q4)
10th Percentile
70th Percentile
Skewness
Kurtosis
Document Your Results:
In RStudio: Before running each statistical test, provide a heading in the format shown at the bottom. “# Mean of mileage – Your name’s command”
In Microsoft Word: Once you've completed all tests, take a screenshot of your results in RStudio and paste it into a Microsoft Word document. Make sure that snapshots are very clear. You will need multiple snapshots. Also transfer these results to the…
Chapter 1 Solutions
Bundle: An Introduction To Statistical Methods And Data Analysis, 7th + Student Solutions Manual
Ch. 1.6 - Hansen (2006) describes a study to assess the...Ch. 1.6 - During 2012, Texas had listed on FracFocus, an...Ch. 1.6 - In 2014, Congress cut $8.7 billion from the...Ch. 1.6 - Of all sports, football accounts for the highest...Ch. 1.6 - During the 2004 senatorial campaign in a large...Ch. 1.6 - An American history professor at a major...
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