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mathematics
statistics

Introductory Statistics 10th Edition Neil A. Weiss - Solutions

As part of ESPN's SportsCenturyRetrospective, a panel chosen by ESPN ranked the top 100 North American athletes of the twentieth century. For a class project, you are to obtain a simple random sample of 15 of these 100 athletes and briefly describe their athletic feats.a. Explain how you can use
TalkBack Live, a production of CNN, conducted on-line surveys on various issues. One survey, called a QuickVote, of 680 people asked "Would you vote for a third-party candidate?" Of the 680 people surveyed, 608 (89.4%) responded "yes" and 72 (10.6%) responded "no." Beneath the vote tally, the
The article "Study Links Hepatitis B and Cancer of Pancreas" by D. Grady, appeared in the September 29, 2008 issue of the NewYork Times. It reported that, for the first time, a study showed that people with pancreatic cancer are more likely than those without the disease to have been infected with
Refer to Problem 17.In P 17.As part of ESPN's SportsCenturyRetrospective, a panel chosen by ESPN ranked the top 100 North American athletes of the twentieth century. For a class project, you are to obtain a simple random sample of 15 of these 100 athletes and briefly describe their athletic
In the article "Randomized Stratified Sampling Methodology for Water Quality in Distribution Systems" (Journal of Water Resources Planning and Management, Vol. 130, Issue 4, pp. 330-338), V. Speight et al. proposed the method of stratified sampling to collect water samples for water-quality
Which of the following sampling procedures involve the use of probability sampling?a. A college student is hired to interview a sample of voters in her town. She stays on campus and interviews 100 students in the cafeteria.b. A pollster wants to interview 20 gas station managers in Baltimore. He
The Times Higher Education "World University Rankings" presents global university performance tables to judge world class universities on the basis of teaching, research, knowledge transfer, and international outlook. The rankings employ 13 carefully calibrated performance indicators to provide
From the Baseball Almanac website, we found the heights, in inches, of the players on the 2012 World Series-winning San Francisco Giants baseball team.a. Construct a stem-and-leaf diagram of these data with five lines per stem.b. Why is it better to use five lines per stem here instead of one or
From the Baseball Almanac website, we found the heights, in inches, of the players on the 2012 World Series runner-up Detroit Tigers baseball team.a. Construct a stem-and-leaf diagram of these data with five lines per stem.b. Why is it better to use five lines per stem here instead of one or two
The number of hospital beds available in community hospitals is decreasing. Through advancement in care and technology, hospitals are getting more efficient. However, the aging and increasingly obese and diabetic population intensifies the need. The American Hospital Association Annual Survey,
Parkinson's disease affects internally generated movements such as movements recalled from memory. L-Dopa is a drug that is used in clinical treatment of Parkinson's disease. In the article, "L-Dopa Induces Under-DampedVisually Guided Motor Responses in Parkinson's Disease" (Experimental Brain
In the article, "Length of The Beatles' Songs" (Chance, Vol. 25, No. 1, pp. 30-33), T. Koyama discusses aspects and interpretations of the lengths of songs by The Beatles. Data on the length, in seconds, of 229 Beatles' songs are presented on the WeissStats site. Use the technology of your choice
As reported by the U.S. Census Bureau in Educational Attainment in the United States, the percentage of adults in each state and the District of Columbia who have completed high school is provided on the WeissStats site. Apply the technology of your choice to construct a stem-and-leaf diagram of
As reported by the U.S. Census Bureau in Educational Attainment in the United States, the percentage of adults in each state and the District of Columbia who have completed a bachelor's degree is provided on the WeissStats site. Apply the technology of your choice to construct a stem-and-leaf
The Recording Industry Association of America (RIAA) reports annual statistics on shipments and revenues. For the year 2012, RIAA reported the following data on physical shipments.Identify the type of data provided by the information in each of the following columns of the table:a. Firstb. Secondc.
Refer to the days-to-maturity data in Table 2.6 on page 53. Note that there are 40 observations, the smallest and largest of which are 36 and 99, respectively. Apply the preceding procedure to choose classes for limit grouping. Use approximately seven classes. Note: If in Step 2 you decide on 10
Construct a relative frequency polygon for the energy-consumption data given in Exercise 2.84. Use the classes specified in that exercise.In E 2.84
Construct a relative-frequency polygon for the speed data given in Exercise 2.89. Use the classes specified in that exercise.
Refer to the energy consumption data given in Exercise 2.84.In E 2.84a. Construct a table similar to Table 2.14 for the data, based on the classes specified in Exercise 2.84. Interpret your results.b. Construct an ogive for the data.
Refer to the speed data given in Exercise 2.89.In E 2.89a. Construct a table similar to Table 2.14 for the data, based on the classes specified in Exercise 2.89. Interpret your results.b. Construct an ogive for the data.
As reported in Primetime Broadcast Programs, a publication of The Nielsen Company, the top three prime broadcast network television shows for the week of August 5, 2013, are as presented in the following table. Ratings are the percentage of TV homes in the United States tuned into television.
Suppose that a variable of a population has a reverse-J-shaped distribution and that two simple random samples are taken from the population.a. Would you expect the distributions of the two samples to have roughly the same shape? If so, what shape?b. Would you expect some variation in shape for the
Identify and sketch three distribution shapes that are symmetric.
The U.S. government's flagship international educational exchange program, the Fulbright program, is sponsored by the Bureau of Educational and Cultural Affairs. Fulbrights are awarded based on "academic and leadership potential, providing the opportunity to exchange ideas and contribute to finding
The following table presents information on the Kelley Blue Book's "10 Best Green Cars of 2013." Note that mpg and mpge are abbreviations for miles per gallon and miles per gallon equivalent, respectively. Identify the type of data provided by the information in each column of the table.
Old Faithful is a geyser in Yellowstone National Park that erupts at relatively predictable intervals. Since 2000, the eruptions of Old Faithfull occur on average every 90 minutes. Information on the daily eruptions of Old Faithful can be found on the website of The Geyser Observation and Study
In the article "Trophic Interaction Cycles in Tundra Ecosystems and the Impact of Climate Change" (Bio Science, Vol. 55, No. 4, pp. 311-321), R. Ims and E. Fuglei provided an overview of animal species in the northern tundra. One threat to the snow goose in arctic Canada is the lemming. Snowy owls
In the article, "Length of The Beatles' Songs" (Chance, Vol. 25, No. 1, pp. 30-33), T. Koyama discusses aspects and interpretations of the lengths of songs by The Beatles. Data on the length, in seconds, of 229 Beatles' songs are presented on the WeissStats site.a. Use the technology of your choice
As reported by the U.S. Census Bureau in Educational Attainment in the United States, the percentage of adults in each state and the District of Columbia who have completed high school is provided on the WeissStats site.a. Use the technology of your choice to identify the modality and symmetry (or
As reported by the U.S. Census Bureau in the document Educational Attainment in the United States, the percentage of adults in each state and the District of Columbia who have completed a bachelor's degree is provided on theWeissStats site.a. Use the technology of your choice to identify the
A study by researchers at the University of Maryland addressed the question of whether the mean body temperature of humans is 98.6◦F. The results of the study by P. Mackowiak et al. appeared in the article "A Critical Appraisal of 98.6◦F, the Upper Limit of the Normal Body Temperature, and
In 1903, K. Pearson and A. Lee published the paper "On the Laws of Inheritance in Man. I. Inheritance of Physical Characters" (Biometrika, Vol. 2, pp. 357-462). The article examined and presented data on forearm length, in inches, for a sample of 140 men, which we present on the WeissStats site.a.
In this exercise, use technology to work Exercise 2.159, as follows:a. Use the technology of your choice to obtain 50 random integers between 0 and 9.b. Use the technology of your choice to get a relative-frequency histogram based on single-value grouping for the numbers that you obtained in part
The U.S. Census Bureau publishes data on the population of the United States by race and Hispanic origin in American Community Survey. From that document, we constructed the following bar chart. Note that people who are Hispanic may be of any race, and people in each race group may be either
We have presented some simple qualitative data sets for practicing the concepts. For each data set,a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Draw a pie chart.d. Construct a bar chart.C A B B A
From the TV by the Numbers website, we obtained the networks for the top 20 primetime broadcast TV shows by total viewership for the week ending August 18, 2013.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Draw a pie chart.d. Construct a bar chart.
From NCAA.com-the official Web site for NCAA sports-we obtained the National Collegiate Athletic Association wrestling champions for the years 1989-2013 in the document "Championship History." They are displayed in the following table.a. Determine a frequency distribution.b. Obtain a
The Department of Justice and the Federal Bureau of Investigation publish a compilation on crime statistics for the United States in Crime in the United States. The following table provides a frequency distribution for robbery type during a one year period.Robbery type _____________________
The Association of American Medical Colleges (AAMC) compiles data on medical school faculty and publishes the results in AAMC Faculty Roster. The following table presents a frequency distribution of rank for medical school faculty during one year.Rank ____________________________ FrequencyProfessor
Drug dealer motivation is traditionally attributed to greed or social pressures. Researchers R. Highland and D. Dabney explore possible personality characteristics as a motivation in the article "Using Adlerian Theory to Shed Light on Drug Dealer Motivations" (Applied Psychology in Criminal
The National Center for Health Statistics collects data on health insurance coverage status and coverage type. The following data from the National Health Interview Survey provides the frequency, in millions, of the current health status for persons aged 19-64 and persons aged 65 and over.a. Obtain
The Japan Automobile Manufacturer's Association provides data on exported vehicles in Motor Vehicle Statistics of Japan. In 2010, cars, trucks, and buses constituted 88.3%, 9.3%, and 2.4%of vehicle exports, respectively. A random sample of last year's exports yielded the vehicle-type data on the
Information provided by the World Meteorological Association revealed the following data on the highest recorded temperature for each continent.a. What type of data is presented in the first column of the table?b. What type of data is presented in the second column of the table?c. What type of data
Use single-value grouping.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part (b).
Use single-value groupinga. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part (b).
Use single-value grouping.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part (b).
Use limit grouping with a first class of 0-9 and a class width of 10.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part (b).
Use limit grouping with a first class of 0-4 and a class width of 5.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part (b).
Use limit grouping with a first class of 30-36 and a class width of 7.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part
Use limit grouping with a first class of 30-36 and a class width of 7.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part
Use cutpoint grouping with a first class of 10-under 15.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part (b).
Use cutpoint grouping with a first class of 40-under 46.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part (b).
The U.S. Geological Survey monitors and reports on earthquakes, providing daily real-time, worldwide earthquake lists. Some of the information for four of the 105 earthquakes that occurred on May 10, 2013, is shown in the following table. Magnitude is given on the Richter scale and NST stands for
Use cutpoint grouping with a first class midpoint of 0.5 and a class width of 1.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result
Use cutpoint grouping with a first cutpoint of 25 and a class width of 3.a. Determine a frequency distribution.b. Obtain a relative-frequency distribution.c. Construct a frequency histogram based on your result from part (a).d. Construct a relative-frequency histogram based on your result from part
Construct a dotplot for the data.
Use one line per stem.Construct a stem-and-leaf diagram for the data, using the specified number of lines per stem.
Use one line per stem.Construct a stem-and-leaf diagram for the data, using the specified number of lines per stem.
Use five lines per stem.Construct a stem-and-leaf diagram for the data, using the specified number of lines per stem.
Use two lines per stem.Construct a stem-and-leaf diagram for the data, using the specified number of lines per stem.
An online article from the Washington Post, titled "Facebook Joins Ranks of Largest IPOs in U.S. History," gave the following information on the top 10 IPOs (initial public offerings) in the United States as of May 2012.a. What type of data is presented in the first column of the table?b. What type
Every year since 1998, Arbitron and Edison Research have conducted a nationally representative survey focusing on trends in digital platforms. According to their publication The Infinite Dial, in 2002, there were an average of 1.2 working computers in the U.S. home. A random sample of 45 households
The U.S. Department of Agriculture reports in Food Consumption Prices, and Expenditures that the average American consumed about 33.5 lb of cheese in 2011. Cheese consumption has increased steadily since 1960, when the average American ate only 8.3 lb of cheese annually. The following table
From the TV by the Numbers website, we obtained the viewing audiences, in millions, for the top 20 primetime broadcast TV shows for the week ending August 18, 2013. Use cutpoint grouping with a first class of 4-under 5.a. Determine a frequency distribution.b. Obtain a relative-frequency
On the Celebrity NetWorth website, we found the article "The 10 Highest Earning Dead Celebrities" by G. Golden. According to the article, the highest earning dead celebrities in 2012 are as shown in the following table.What type of data is presented in thea. First column of the table?b. Second
Consumer Reports provides information on new automobile models, including price, mileage ratings, engine size, body size, and indicators of features. A simple random sample of 35 new models yielded the following data on fuel tank capacity, in gallons. Use cutpoint grouping with 12 as the first
According to R. L. Polk & Co., the average age of passenger cars in the United States was 9.1 years in 2000. A sample of 37 passenger cars taken this year provided the ages, in years displayed in the following table. Construct a dotplot for the ages.
A quantitative data set has been grouped by using limit grouping with equal-width classes of width 5. The class limits are whole numbers.a. If the class mark of the first class is 8, what are its lower and upper limits?b. What is the class mark of the second class?c. What are the lower and upper
According to Wikipedia, the world's five largest hydroelectric plants, based on installed capacity, are as shown in the following table. Capacities are in megawatts.a. What type of data is given in the first column of the table?b. What type of data is given in the fourth column?c. What type of data
Refer to Example 2.16 on page 60.a. Explain why a frequency histogram of the DVD prices with single-value classes would be essentially identical to the dotplot shown in Fig. 2.7.b. Would the dotplot and a frequency histogram be essentially identical with other than single-value classes? Explain
From the Information Please Almanac, we obtained the ages at inauguration for the first 44 presidents of the United States (from George Washington to Barack H. Obama).a. Identify the classes for grouping these data, using limit grouping with classes of equal width 5 and a first class of 40-44.b.
Refer to Problem 19. Construct a dotplot for the ages at inauguration of the first 44 presidents of the United States.
Refer to Problem 19. Construct a stem-and-leaf diagram for the inauguration ages of the first 44 presidents of the United States.a. Use one line per stem.b. Use two lines per stem.c. Which of the two stem-and-leaf diagrams that you just constructed corresponds to the frequency distribution of
In the article "Comparing the lifetime of two brands of batteries" (Journal of Statistics Education, Vol. 21, No. 1, pp. 1-19) by P. Dunn, two brands of AA alkaline batteries were compared. The following table gives the number of pulses required for a sample of 18 Energizer and Ultracell batteries
The Air Travel Consumer Report is a monthly product of the Department of Transportation's Office of Aviation Enforcement and Proceedings. The report is designed to assist consumers with information on the quality of services provided by the airlines. Following are the percentages of on-time
From the ESPNWeb site, we obtained the age of the oldest player on each of the major league baseball teams during one season. Here are the data.a. Construct a dotplot for these data.b. Use your dotplot from part (a) to identify the modality and symmetry (or nonsymmetry) of the distribution of these
Firearms, live ammunition, and spent cartridge casings are often submitted to crime laboratories to be processed for latent fingerprints. B. Maldonado explored the chances of successfully recovering fingerprints in the article, "Study on Developing Latent Fingerprints on Firearm Evidence" (Journal
The U.S. Census Bureau divides the states in the United States into nine divisions: East North Central (ENC), East South Central (ESC), Middle Atlantic (MAC), Mountain (MTN), New England (NED), Pacific (PAC), South Atlantic (SAC), West North Central (WNC), andWest South Central (WSC). The following
The U.S. Department of Agriculture collects data pertaining to the value of agricultural exports and publishes its findings in U.S. Agricultural Trade Update. For one year, the values of these exports, by state, are provided on the WeissStats site. Data are in millions of dollars.a. Identify the
Life expectancy is the average number of years to be lived by a group of people born in the same year if mortality at each age remains constant in the future. From the World FactBook, published by the Central Intelligence Agency (CIA), we obtained the life expectancy for people in various
The U.S. National Oceanic and Atmospheric Administration publishes temperature data in Climatography of the United States. According to that document, the annual average maximum and minimum temperatures for selected cities in the United States are as provided on the WeissStats site.a. Identify the
What does Chebyshev's rule say about the percentage of observations in any data set that lie withina. 1.25 standard deviations to either side of the mean?b. 3.5 standard deviations to either side of the mean?
Consider the following data set.a. Draw a graph similar to Fig. 3.5 on page 111.b. Compare the percentage of the observations that actually lie within two standard deviations to either side of the mean with that given by Chebyshev's rule with k = 2.c. Repeat part (b) with k = 3.
Each of the following smooth curves represents the shape of a data set. In each case, decide whether application of the empirical rule to the data set is appropriate. Explain your answers.a.b.c.
What is another name for the empirical rule? Why is that name appropriate?
A quantitative data set has mean 10 and standard deviation 3. Fill in the following blanks:a. At least 75% of the observations lie between ______ and _____ .b. At least ______% of the observations lie between 1 and 19.Apply Chebyshev's rule to solve.
A quantitative data set has mean 25 and standard deviation 5.Fill in the following blanks:a. At least 89% of the observations lie between _______ and _______.b. At least _______ % of the observations lie between 15 and 35.Apply Chebyshev's rule to solve.
A quantitative data set has mean 15 and standard deviation 2. At least what percentage of the observations lie between 7 and 23? Apply Chebyshev's rule to solve.
A quantitative data set has mean 30 and standard deviation 4. At least what percentage of the observations lie between 10 and 50? Apply Chebyshev's rule to solve.
A quantitative data set has size 40. At least how many observations lie within two standard deviations to either side of the mean? Apply Chebyshev's rule to solve.
A quantitative data set has size 80. At least how many observations lie within two standard deviations to either side of the mean? Apply Chebyshev's rule to solve.
A quantitative data set has size 60. At least how many observations lie within three standard deviations to either side of the mean? Apply Chebyshev's rule to solve.
A quantitative data set has size 50. At least how many observations lie within three standard deviations to either side of the mean? Apply Chebyshev's rule to solve.
A quantitative data set of size 80 has mean 30 and standard deviation 5. At least how many observations lie between 20 and 40? Apply Chebyshev's rule to solve.
A quantitative data set of size 60 has mean 100 and standard deviation 16. At least how many observations lie between 68 and 132? Apply Chebyshev's rule to solve.
A quantitative data set of size 200 has mean 20 and standard deviation 4. At least how many observations lie between 8 and 32? Apply Chebyshev's rule to solve.
A quantitative data set of size 150 has mean 35 and standard deviation 4. At least how many observations lie between 23 and 47? Apply Chebyshev's rule to solve.
The data set has mean 10 and standard deviation 3. Fill in the following blanks:a. Approximately 68% of the observations lie between ______ and ______.b. Approximately 95% of the observations lie between ______ and ______.c. Approximately 99.7% of the observations lie between ______ and ______.The
The data set has mean 25 and standard deviation 5. Fill in the following blanks:a. Approximately 68% of the observations lie between ______ and ______.b. Approximately 95% of the observations lie between ______ and ______.c. Approximately 99.7% of the observations lie between ______ and ______.The
The data set has size 40. Approximately how many observations lie within two standard deviations to either side of the mean? The quantitative data set under consideration has roughly a bell-shaped distribution. Apply the empirical rule to solve.

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