Statistics (13th Edition)
Statistics (13th Edition)
13th Edition
ISBN: 9780134080215
Author: James T. McClave, Terry T Sincich
Publisher: PEARSON
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Concept explainers

Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of tw…
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency o…
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow compar…
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Chapter 2.4, Problem 73UP
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Explain about range of a data set.

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Chapter 2 Solutions

Statistics (13th Edition)

Ch. 2.1 - Explain the difference between class frequency,...Ch. 2.1 - Explain the difference between a bar graph and a...Ch. 2.1 - Explain the difference between a bar graph and a...Ch. 2.1 - Complete the following table: Ch. 2.1 - 2.2 A qualitative variable with three classes (X,...Ch. 2.1 - Study of importance of libraries. In The Canadian...Ch. 2.1 - 2.5 Do social robots walk or roll? A social (or...Ch. 2.1 - Paying for music downloads. If you use the...Ch. 2.1 - Cheek teeth of extinct primates. The...Ch. 2.1 - Humane education and classroom pets. In grade...
Ch. 2.1 - Estimating the rhino population. The...Ch. 2.1 - STEM experiences for girls. The National Science...Ch. 2.1 - 2.7 Microsoft program security issues. To help its...Ch. 2.1 - Genealogy research. The Journal of Family History...Ch. 2.1 - Characteristics of ice melt ponds. The National...Ch. 2.1 - Railway track allocation. One of the problems...Ch. 2.1 - Satellites in orbit. According to the Union of...Ch. 2.1 - Curbing street gang gun violence. Operation...Ch. 2.1 - Interactions in a children’s museum. The nature of...Ch. 2.1 - 2.16 Motivation and right-oriented bias....Ch. 2.1 - Do you believe in the Bible? Each year the...Ch. 2.1 - Museum management. What criteria do museums use to...Ch. 2.1 - 2.17 Groundwater contamination in wells. In New...Ch. 2.1 - Extinct New Zealand birds. Refer to the...Ch. 2.2 - Explain the difference between a dot plot and a...Ch. 2.2 - Explain the difference between a bar graph and a...Ch. 2.2 - Explain the difference between the stem and the...Ch. 2.2 - In a histogram, what are the class intervals? Ch. 2.2 - How many classes are recommended in a histogram of...Ch. 2.2 - 2.21 Minitab was used to generate the following...Ch. 2.2 - 2.20 Consider the stem-and-leaf display shown...Ch. 2.2 - 2.18 Graph the relative frequency histogram for...Ch. 2.2 - 2.19 Refer to Exercise 2.18. Calculate the number...Ch. 2.2 - Irrelevant speech effects. In a psychological...Ch. 2.2 - Stability of compounds in new drugs. Testing the...Ch. 2.2 - 2.23 Corporate sustainability of CPA firms. Refer...Ch. 2.2 - Shaft graves in ancient Greece. Archeologists have...Ch. 2.2 - Cheek teeth of extinct primates. Refer to the...Ch. 2.2 - Music performance anxiety. The nature of...Ch. 2.2 - Is honey a cough remedy? Does a teaspoon of honey...Ch. 2.2 - Sanitation inspection of cruise ships. To minimize...Ch. 2.2 - Crab spiders hiding on flowers. Crab spiders use...Ch. 2.2 - Sound waves from a basketball. An experiment was...Ch. 2.2 - Research on eating disorders. Data from a...Ch. 2.2 - Research on brain specimens. The postmortem...Ch. 2.2 - State SAT scores. Educators are constantly...Ch. 2.2 - 2.33 Phishing attacks to e-mail accounts. Phishing...Ch. 2.2 - Mineral flotation in water study. A high...Ch. 2.3 - Give three different measures of central...Ch. 2.3 - Explain the difference between a measure of...Ch. 2.3 - What is the symbol used to represent the sample...Ch. 2.3 - Explain the concept of a skewed distribution. Ch. 2.3 - What two factors affect the accuracy of the sample...Ch. 2.3 - 2.41 Describe how the mean compares to the median...Ch. 2.3 - 2.35 Calculate the mean and median of the...Ch. 2.3 - 2.39 Calculate the mode, mean, and median of the...Ch. 2.3 - 2.36 Calculate the mean for samples where n = 10,...Ch. 2.3 - Construct one data set consisting of five...Ch. 2.3 - 2.40 Calculate the mean, median, and mode for each...Ch. 2.3 - Use the applet entitled Mean versus Median to find...Ch. 2.3 - Use the applet Mean versus Median to illustrate...Ch. 2.3 - Use the applet Mean versus Median to study the...Ch. 2.3 - Prob. 60ACBCh. 2.3 - Characteristics of a rock fall. In Environmental...Ch. 2.3 - Music performance anxiety. Refer to the British...Ch. 2.3 - Corporate sustainability of CPA firms. Refer to...Ch. 2.3 - 2.49 Is honey a cough remedy? Refer to the...Ch. 2.3 - Check teeth of extinct primates. Refer to the...Ch. 2.3 - 2.52 Ranking driving performance of professional...Ch. 2.3 - 2.51 Symmetric or skewed? Would you expect the...Ch. 2.3 - Mongolian desert ants. The Journal of Biogeography...Ch. 2.3 - Permeability of sandstone during weathering....Ch. 2.3 - Mineral flotation in water study. Refer to the...Ch. 2.3 - Contact lenses for myopia. Myopia (i.e.,...Ch. 2.3 - Active nuclear power plants. The U.S. Energy...Ch. 2.4 - What is the range of data set? Ch. 2.4 - Prob. 74UPCh. 2.4 - Prob. 75UPCh. 2.4 - Prob. 76UPCh. 2.4 - Prob. 77UPCh. 2.4 - 2.58 Calculate the variance and standard deviation...Ch. 2.4 - Prob. 79LMCh. 2.4 - Prob. 80LMCh. 2.4 - 2.62 Using only integers between 0 and 10,...Ch. 2.4 - Prob. 82LMCh. 2.4 - 2.63 Consider the following sample of five...Ch. 2.4 - Prob. 84LMCh. 2.4 - Use the applet entitled Standard Deviation to find...Ch. 2.4 - Use the applet Standard Deviation to study the...Ch. 2.4 - Use the applet Standard Deviation to study the...Ch. 2.4 - Shell lengths of sea turtles. Aquatic Biology...Ch. 2.4 - Shaft graves in ancient Greece. Refer to the...Ch. 2.4 - Music performance anxiety. Refer to the British...Ch. 2.4 - Characteristics of a rockfall. Refer to the...Ch. 2.4 - 2.68 Is honey a cough remedy? Refer to the...Ch. 2.4 - 2.65 Permeability of sandstone during weathering....Ch. 2.4 - Check teeth of extinct primates. Refer to the...Ch. 2.4 - 2.69 Active nuclear power plants. Refer to...Ch. 2.5 - To what kind of data sets can Chebyshev’s rule be...Ch. 2.5 - Prob. 94UPCh. 2.5 - Prob. 95UPCh. 2.5 - 2.72 For any set of data, what can be said about...Ch. 2.5 - 2.73 For a set of data with a mound-shaped...Ch. 2.5 - 2.74 The following is a sample of 25...Ch. 2.5 - 2.75 Given a data set with a largest value of 760...Ch. 2.5 - 2.78 Do social robots walk or roll? Refer to the...Ch. 2.5 - Sanitation inspection of cruise ships. Refer to...Ch. 2.5 - 2.80 Motivation of drug dealers. Consider a study...Ch. 2.5 - Dentists’ use of anesthetics. A study published in...Ch. 2.5 - Irrelevant speech effects. Refer to the Acoustical...Ch. 2.5 - Corporate sustainability of CPA firms. Refer to...Ch. 2.5 - Characteristics of antiwar demonstrators. The...Ch. 2.5 - Hand washing versus hand rubbing. As an...Ch. 2.5 - Velocity of Winchester bullets. The American...Ch. 2.5 - 2.77 Permeability of sandstone during weathering....Ch. 2.5 - 2.85 Shopping vehicle and judgment. While shopping...Ch. 2.5 - Animal-assisted therapy for heart patients. A...Ch. 2.5 - 2.87 Land purchase decision. A buyer for a lumber...Ch. 2.6 - For a quantitative data set What is the 50th...Ch. 2.6 - 2.91 Give the percentage of measurements in a data...Ch. 2.6 - Prob. 116UPCh. 2.6 - 2.90 Compute the z-score corresponding to each of...Ch. 2.6 - Prob. 118LMCh. 2.6 - 2.94 Suppose that 40 and 90 are two elements of a...Ch. 2.6 - Math scores of twelfth graders. According to the...Ch. 2.6 - Drivers stopped by police. According to the Bureau...Ch. 2.6 - Stability of compounds in new drugs. Refer to the...Ch. 2.6 - Sanitation inspection of cruise ships. Refer to...Ch. 2.6 - Motivation of drug dealers. Refer to the Applied...Ch. 2.6 - 2.99 Lead in drinking water. The U.S....Ch. 2.6 - 2.96 Voltage sags and swells. Refer to the...Ch. 2.6 - 2.102 Blue- vs. red-colored exam study. In a study...Ch. 2.6 - 2.103 Ranking PhD programs in economics. Thousands...Ch. 2.6 - 2.105 Ranking PhD programs in economics (cont’d)....Ch. 2.6 - 2.104 Using z-scores for grades. At one...Ch. 2.7 - What is the interquartile range? Ch. 2.7 - What are the hinges of a box plot? Ch. 2.7 - With mound-shaped data, what proportion of the...Ch. 2.7 - Define an outlier. Ch. 2.7 - 2.107 Suppose a data set consisting of exam scores...Ch. 2.7 - 2.108 Consider the horizontal box plot shown...Ch. 2.7 - 2.106 A sample data set has a mean of 57 and a...Ch. 2.7 - Consider the following sample data set. Construct...Ch. 2.7 - Consider the following sample data set. Construct...Ch. 2.7 - Use the applet Standard Deviation to determine...Ch. 2.7 - Blond hair types in the Southwest Pacific. A...Ch. 2.7 - Dentists’ use of anesthetics. Refer to the Current...Ch. 2.7 - Research on brain specimens. Refer to the Brain...Ch. 2.7 - Prob. 144ACBCh. 2.7 - Prob. 145ACBCh. 2.7 - 2.112 Treating psoriasis with the “Doctorfish of...Ch. 2.7 - Sanitation Inspection of cruise ships. Refer to...Ch. 2.7 - Prob. 148ACICh. 2.7 - Prob. 149ACICh. 2.7 - Is honey a cough remedy? Refer to the Archives of...Ch. 2.7 - 2.119 Permeability of sandstone during weathering....Ch. 2.7 - Library book checkouts. A city librarian claims...Ch. 2.7 - Untutored second language acquisition. A student...Ch. 2.8 - Define a bivariate relationship. Ch. 2.8 - Prob. 155UPCh. 2.8 - Prob. 156UPCh. 2.8 - Prob. 157LMCh. 2.8 - Prob. 158LMCh. 2.8 - Prob. 159ACBCh. 2.8 - Prob. 160ACBCh. 2.8 - Prob. 161ACBCh. 2.8 - Feeding behavior of fish. The feeding behavior of...Ch. 2.8 - New method for blood typing. In Analytical...Ch. 2.8 - Prob. 164ACICh. 2.8 - Plants that grow on Swiss cliffs. A rare plant...Ch. 2.8 - Prob. 166ACICh. 2.8 - Prob. 168ACACh. 2.8 - Ranking driving performance of professional...Ch. 2.9 - Museum management. Refer to the Museum Management...Ch. 2.9 - Trend in Iraq War casualties. While the United...Ch. 2.9 - 2.138 BP oil leak. In the summer of 2010, an...Ch. 2.9 - Irrelevant speech effects. Refer to the Acoustical...Ch. 2 - Prob. 174UPCh. 2 - 2.140 Discuss the conditions under which the...Ch. 2 - Prob. 176UPCh. 2 - Prob. 177UPCh. 2 - Prob. 178UPCh. 2 - Prob. 179LMCh. 2 - Prob. 180LMCh. 2 - Prob. 181LMCh. 2 - Prob. 182LMCh. 2 - Prob. 183LMCh. 2 - For each of the data sets in parts a–d, compute ,...Ch. 2 - Prob. 185LMCh. 2 - Prob. 186ACBCh. 2 - Prob. 187ACBCh. 2 - Reading Japanese books. Refer to Exercise 2.187....Ch. 2 - Prob. 189ACBCh. 2 - Crash tests on new cars. Each year, the National...Ch. 2 - Crash tests on new cars. Refer to Exercise 2.190...Ch. 2 - Estimating the age of glacial drifts. Tills are...Ch. 2 - Training zoo animals. “The Training Game” is an...Ch. 2 - Groundwater contamination in wells. Refer to the...Ch. 2 - Sociology fieldwork methods. University of New...Ch. 2 - Radioactive lichen. Lichen has a high absorbance...Ch. 2 - 2.88 Improving SAT scores. The National Education...Ch. 2 - Ammonia in car exhaust. Three-way catalytic...Ch. 2 - College protests of labor exploitation. The United...Ch. 2 - Speed of light front galaxies. Astronomers...Ch. 2 - Whistling dolphins. Marine scientists who study...Ch. 2 - Sentence complexity study. A study published in...Ch. 2 - Prob. 203ACICh. 2 - Archaeologists’ study of ring diagrams....Ch. 2 - Oil spill impact on seabirds. The Journal of...Ch. 2 - Benford’s Law of Numbers. According to Benford’s...Ch. 2 - Speed of light from galaxies. Refer to The...Ch. 2 - Standardized test “average.” U.S. News & World...Ch. 2 - Zinc phosphide in pest control. A chemical company...Ch. 2 - Grades in statistics. The final grades given by...Ch. 2 - Salaries of professional athletes. The salaries of...Ch. 2 - 2.170 No Child Left Behind Act. According to the...Ch. 2 - The Hite Report. Researcher Shere Hite shocked...
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