Mind on Statistics
5th Edition
ISBN: 9781285463186
Author: Jessica M. Utts, Robert F. Heckard
Publisher: Brooks Cole
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Textbook Question
Chapter 2, Problem 2.143E
Use the pennstate 1 dataset on the companion website for this exercise.
- Draw a histogram of the height variable.
- What is the shape of this histogram? why do you think it is not a bell shape?
- Draw a boxplot of the height variable.
- Which graph, the histogram or the boxplot, is more information about this dataset? Briefly explain.
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Students have asked these similar questions
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…
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…
2 (VaR and ES) Suppose X1
are independent. Prove that
~
Unif[-0.5, 0.5] and X2
VaRa (X1X2) < VaRa(X1) + VaRa (X2).
~
Unif[-0.5, 0.5]
Chapter 2 Solutions
Mind on Statistics
Ch. 2 - A sociologist assembles a dataset consisting of...Ch. 2 - Suppose that in a national survey of 620 randomly...Ch. 2 - In each situation, explain whether it would be...Ch. 2 - In each situation, explain whether it would be...Ch. 2 - For each of the following statistical summaries,...Ch. 2 - Prob. 2.6ECh. 2 - Prob. 2.7ECh. 2 - Read Case Study 1.5 (p. 4) about prayer and blood...Ch. 2 - Prob. 2.9ECh. 2 - Read Case Study 1.6 (p.5) about aspirin and heart...
Ch. 2 - Prob. 2.11ECh. 2 - For each of the following characteristics of an...Ch. 2 - Prob. 2.13ECh. 2 - Prob. 2.14ECh. 2 - Prob. 2.15ECh. 2 - Prob. 2.16ECh. 2 - Prob. 2.17ECh. 2 - For each pair of variables, specify which variable...Ch. 2 - Prob. 2.19ECh. 2 - Prob. 2.20ECh. 2 - Prob. 2.21ECh. 2 - Prob. 2.22ECh. 2 - Prob. 2.23ECh. 2 - Prob. 2.24ECh. 2 - Prob. 2.25ECh. 2 - Prob. 2.26ECh. 2 - Table 2.1 (P. 20) summarized frequency of seatbelt...Ch. 2 - Prob. 2.28ECh. 2 - Prob. 2.29ECh. 2 - Refer to Exercise 2.27. Students also were asked...Ch. 2 - Prob. 2.31ECh. 2 - Prob. 2.32ECh. 2 - Prob. 2.33ECh. 2 - Prob. 2.34ECh. 2 - Prob. 2.35ECh. 2 - Prob. 2.36ECh. 2 - This is the same as Exercise ¡.1. The five-number...Ch. 2 - Prob. 2.38ECh. 2 - Prob. 2.39ECh. 2 - Prob. 2.40ECh. 2 - Prob. 2.41ECh. 2 - Prob. 2.42ECh. 2 - Prob. 2.43ECh. 2 - Hand et al. (1994, p. 148) provide data on the...Ch. 2 - The following stem-and-leaf plot is for the mean...Ch. 2 - Prob. 2.46ECh. 2 - Prob. 2.47ECh. 2 - Prob. 2.48ECh. 2 - Prob. 2.49ECh. 2 - Prob. 2.50ECh. 2 - Prob. 2.51ECh. 2 - Prob. 2.52ECh. 2 - Prob. 2.53ECh. 2 - Prob. 2.54ECh. 2 - Prob. 2.55ECh. 2 - Prob. 2.56ECh. 2 - Prob. 2.57ECh. 2 - Prob. 2.58ECh. 2 - Prob. 2.59ECh. 2 - Prob. 2.60ECh. 2 - Prob. 2.61ECh. 2 - Students in a statistics class wrote as many...Ch. 2 - Prob. 2.63ECh. 2 - The following cholesterol levels for n = 20...Ch. 2 - The weights (in pounds) for nine men on the...Ch. 2 - A set of eight systolic blood pressures follows:...Ch. 2 - Prob. 2.67ECh. 2 - Prob. 2.68ECh. 2 - Prob. 2.69ECh. 2 - Prob. 2.70ECh. 2 - Prob. 2.71ECh. 2 - Prob. 2.72ECh. 2 - Prob. 2.73ECh. 2 - The football team at the school of one of the...Ch. 2 - Prob. 2.75ECh. 2 - Prob. 2.76ECh. 2 - Prob. 2.77ECh. 2 - Prob. 2.78ECh. 2 - Prob. 2.79ECh. 2 - Prob. 2.80ECh. 2 - Prob. 2.81ECh. 2 - Prob. 2.82ECh. 2 - Prob. 2.83ECh. 2 - Prob. 2.84ECh. 2 - Prob. 2.85ECh. 2 - Prob. 2.86ECh. 2 - Prob. 2.87ECh. 2 - Suppose that the distribution of speeds at an...Ch. 2 - Prob. 2.89ECh. 2 - Prob. 2.90ECh. 2 - Prob. 2.91ECh. 2 - Prob. 2.92ECh. 2 - Prob. 2.93ECh. 2 - The data for Exercise 2.66 was this set of...Ch. 2 - Prob. 2.95ECh. 2 - If you learn that your score on an exam was 80 and...Ch. 2 - The scores on the final exam in a course with a...Ch. 2 - Prob. 2.98ECh. 2 - Prob. 2.99ECh. 2 - Prob. 2.100ECh. 2 - Head circumferences of adult males have a...Ch. 2 - Prob. 2.102ECh. 2 - Suppose verbal SAT scores for students admitted to...Ch. 2 - Prob. 2.104ECh. 2 - Prob. 2.105ECh. 2 - Prob. 2.106ECh. 2 - Prob. 2.107ECh. 2 - Remember that a resistant statistic is a numerical...Ch. 2 - Prob. 2.109ECh. 2 - Prob. 2.110ECh. 2 - Prob. 2.111ECh. 2 - Prob. 2.112ECh. 2 - Prob. 2.113ECh. 2 - Prob. 2.114ECh. 2 - Prob. 2.115ECh. 2 - Prob. 2.116ECh. 2 - Prob. 2.117ECh. 2 - Prob. 2.118ECh. 2 - Prob. 2.119ECh. 2 - Prob. 2.120ECh. 2 - Prob. 2.121ECh. 2 - Prob. 2.122ECh. 2 - The data for 103 women’s right handspans are shown...Ch. 2 - Prob. 2.124ECh. 2 - Prob. 2.125ECh. 2 - Prob. 2.126ECh. 2 - Prob. 2.127ECh. 2 - Prob. 2.128ECh. 2 - Prob. 2.129ECh. 2 - Prob. 2.130ECh. 2 - Prob. 2.131ECh. 2 - Prob. 2.132ECh. 2 - Prob. 2.133ECh. 2 - Prob. 2.134ECh. 2 - Prob. 2.135ECh. 2 - Explain why women’s heights are likely to have a...Ch. 2 - Prob. 2.137ECh. 2 - Use the pennstate 1 dataset on the companion...
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