Mind on Statistics
5th Edition
ISBN: 9781285463186
Author: Jessica M. Utts, Robert F. Heckard
Publisher: Brooks Cole
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Chapter 2, Problem 2.1E
A sociologist assembles a dataset consisting of the poverty rate, per capita income, serious crime rate, and teen birthrate for the 50 states of the United States.
- How many variables are in this dataset?
- What is an observational unit in this dataset?
- What is the
sample size for the dataset?
Expert Solution
To determine
(a)
To Find:
The number of variables in the data set
Answer to Problem 2.1E
Explanation of Solution
The data set assembled by the sociologists consists of four variables such as the poverty rate, per capita income, serious crime rate, and teen birth rate for the
Expert Solution
To determine
(b)
To Find:
The observational unit in this dataset
Answer to Problem 2.1E
A state of the united states
Explanation of Solution
Since the sociologists observes these four variables in the
Expert Solution
To determine
(c)
To Find:
The sample size for the dataset
Answer to Problem 2.1E
Explanation of Solution
Since the sociologists observes those variables in
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Consider a sample with data values of 27, 25, 20, 15, 30, 34, 28, and 25. Compute the range, interquartile range, variance, and standard deviation (to a maximum of 2 decimals, if decimals are necessary).
Range
Interquartile range
Variance
Standard deviation
Perform a Step by step following tests in Microsoft Excel. Each of the following is 0.5 points, with a total of 6 points. Provide your answers in the following table.
Median
Standard Deviation
Minimum
Maximum
Range
1st Quartile
2nd Quartile
3rd Quartile
Skewness; provide a one sentence explanation of what does the skewness value indicates
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Make a labelled histogram; no point awarded if it is not labelled
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Data
27
30
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28
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26
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27
27
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20
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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