Problem 1.1RE: Bananas Here are the prices (in cents per pound) of bananas reported from 15 markets surveyed by the... Problem 1.2RE Problem 1.3RE: Singers by parts The boxplots display the heights (in inches) of 130 members of a choir by the part... Problem 1.4RE: Dialysis In a study of dialysis, researchers found that of the three patients who were currently on... Problem 1.5RE: Beanstalks Beanstalk Clubs are social clubs for very tall people. To join, a man must be over 62... Problem 1.6RE: Bread Clarksburg Bakery is trying to predict how many loaves to bake. In the past 100 days, they... Problem 1.7RE: State University Public relations staff members at State U. phoned 850 local residents. After... Problem 1.8RE: Shenandoah rain Based on long-term investigation, researchers have suggested that the acidity (pH)... Problem 1.9RE Problem 1.10RE: Streams As part of the course work, a class at an upstate NY college collects data on streams each... Problem 1.11RE Problem 1.12RE Problem 1.13RE: Lets play cards You pick a card from a standard deck and record its denomination (7, say) and its... Problem 1.14RE: Accidents Progressive Insurance asked customers who had been involved in auto accidents how far they... Problem 1.15RE: Hard water In an investigation of environmental causes of disease, data were collected on the annual... Problem 1.16RE Problem 1.17RE: Seasons Average daily temperatures in January and July for 60 large U.S. cities are graphed in the... Problem 1.18RE Problem 1.19RE Problem 1.20RE Problem 1.21RE: Libertys nose Is the Statue of Libertys nose too long? Her nose measures 46, but she is a large... Problem 1.22RE: Winter Olympics 2010 speed skating The times from the first race of the womens 2 500-m speed... Problem 1.23RE: Sample A study in South Africa focusing on the impact of health insurance identified 1590 children... Problem 1.24RE: Sluggers Babe Ruth was the first great slugger in baseball. His record of 60 home runs in one season... Problem 1.25RE Problem 1.26RE: Music and memory Is it a good idea to listen to music when studying for a big test? In a study... Problem 1.27RE: Mail Here are the number of pieces of mail received at a school office for 36 days. a) Plot these... Problem 1.28RE: Birth order Is your birth order related to your choice of major? A statistics professor at a large... Problem 1.29RE: Herbal medicine Researchers for the Herbal Medicine Council collected information on peoples... Problem 1.30RE: Birth order revisited Consider again the data on birth order and college majors in Exercise R1.28.... Problem 1.31RE: Engines One measure of the size of an automobile engine is its displacement, the total volume (in... Problem 1.32RE: Engines, again Horsepower is another measure commonly used to describe auto engines. Here are the... Problem 1.33RE Problem 1.34RE Problem 1.35RE: Age and party 2011 II Consider again the Pew Research Center results on age and political party in... Problem 1.36RE Problem 1.37RE Problem 1.38RE: Global500 2014 Here is a stem-and-leaf display showing profits (in M) for 30 of the 500 largest... Problem 1.41RE: Hopkins Forest investigation The Hopkins Forest data set includes all 24 weather variables reported... Problem 1.42RE Problem 1.43RE Problem 1.44RE Problem 2.1RE: Matching Here are several scatterplots. The calculated correlations are 0.923, 0.487, 0.006, and... Problem 2.2RE Problem 2.3RE Problem 2.4RE: Vineyards again Instead of Age, perhaps the Size of the vineyard (in acres) is associated with the... Problem 2.5RE Problem 2.6RE Problem 2.7RE Problem 2.8RE Problem 2.9RE Problem 2.10RE Problem 2.11RE Problem 2.12RE Problem 2.13RE: Traffic Highway planners investigated the relationship between traffic Density (number of... Problem 2.14RE Problem 2.15RE: Cars, correlations What factor most explains differences in Fuel Efficiency among cars? Below is a... Problem 2.16RE: Cars, associations Look again at the correlation table for cars in the previous exercise. a) Which... Problem 2.17RE: Cars, horsepower Can we predict the Horsepower of the engine that manufacturers will put in a car by... Problem 2.18RE Problem 2.19RE Problem 2.20RE Problem 2.21RE Problem 2.22RE Problem 2.23RE: How old is that tree? One can determine how old a tree is by counting its rings, but that requires... Problem 2.24RE Problem 2.25RE Problem 2.26RE: Smoking and pregnancy 2011 The Child Trends Data Bank monitors issues related to children. The table... Problem 2.27RE Problem 2.28RE Problem 2.29RE Problem 2.30RE: Correlations The study of U.S. cities in Exercise R2.29 found the mean January Temperature (degrees... Problem 2.31RE Problem 2.32RE: Depression The September 1998 issue of the American T Psychologist published an article by Kraut et... Problem 2.33RE Problem 2.34RE: Modeling jumps 2016 Here are the summary statistics for the Olympic jumps displayed in the previous... Problem 2.35RE: French Consider the association between a students score on a French vocabulary test and the weight... Problem 2.36RE Problem 2.37RE Problem 2.38RE: Gasoline Since clean-air regulations have dictated the use of unleaded gasoline, the supply of... Problem 2.39RE Problem 2.40RE Problem 2.41RE Problem 2.42RE Problem 2.43RE Problem 2.44RE Problem 2.45RE Problem 2.46RE Problem 2.47RE Problem 2.48RE Problem 2.49RE Problem 2.50RE Problem 2.51RE: Penguins again In Chapter 8 we learned about the extraordinary depth and duration of the dives taken... Problem 2.52RE Problem 3.1RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.2RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.3RE Problem 3.4RE Problem 3.5RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.6RE Problem 3.7RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.8RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.9RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.10RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.11RE Problem 3.12RE: An artisan wants to create pottery that has the appearance of age. He prepares several samples of... Problem 3.13RE Problem 3.14RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.15RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.16RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.17RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.18RE: R3.1R3.18. What design? Analyze the design of each research example reported. Is it a sample survey,... Problem 3.19RE Problem 3.20RE Problem 3.21RE: Alternate day fasting A paper published in 2017 in JAMA Internal Medicine... Problem 3.22RE: Cell phone risks Researchers at the Washington University School of Medicine randomly placed 480... Problem 3.23RE Problem 3.24RE Problem 3.25RE Problem 3.27RE: How long is 30 seconds? Sofie, Ryan, and Alessandra wanted to design an experiment to find out how... Problem 3.28RE: Cookies Mary Beth, Nigel, and Molly want to design an experiment to find the recipe for the best... Problem 3.29RE: Homecoming A college statistics class conducted a survey concerning community attitudes about the... Problem 3.30RE: Youthful appearance Readers Digest (April 2002, p. 152) reported results of several surveys that... Problem 3.31RE: Smoking and Alzheimers Medical studies indicate that smokers are less likely to develop Alzheimers... Problem 3.32RE Problem 3.33RE: Sex and violence Does the content of a television program affect viewers memory of the products... Problem 3.34RE: Pubs In England, a Leeds University researcher said that the local watering holes welcoming... Problem 3.35RE: Age and party 2008 The Pew Research Center collected data from national exits polls conducted by NBC... Problem 3.36RE: Bias? Political analyst Michael Barone has written that conservatives are more likely than others to... Problem 3.37RE Problem 3.39RE: Acupuncture Research reported in 2008 brings to light the effectiveness of treating chronic lower... Problem 3.40RE: Fuel efficiency Wayne Collier designed an experiment to measure the fuel efficiency of his family... Problem 3.41RE: Security There are 20 first-class passengers and 120 coach passengers scheduled on a flight. In... Problem 3.42RE: Internet speed Carsten, Matt, and Rainer designed an experiment to see how different environments... Problem 4.1RE Problem 4.2RE Problem 4.3RE: Emergency switch Safety engineers must determine whether industrial workers can operate a machines... Problem 4.4RE Problem 4.5RE Problem 4.6RE Problem 4.7RE: Babies The National Perinatal Statistics Unit of the Sydney Childrens Hospital reports that the mean... Problem 4.8RE: Archery A champion archer can generally hit the bulls-eye 80% of the time. Suppose she shoots 200... Problem 4.9RE: Color-blind Medical literature says that about 8% of males are color-blind. A universitys... Problem 4.10RE: Hamsters How large are hamster litters? Among 47 golden hamster litters recorded, there were an... Problem 4.11RE Problem 4.12RE: Polling 2016 The 2016 U.S. presidential election was unusual in several ways. First, the candidate... Problem 4.13RE: Fake news In a survey of 1002 U.S. adults in December 2016 by Pew Research... Problem 4.14RE: Scrabble Using a computer to play many simulated games of Scrabble, researcher Charles Robinove... Problem 4.15RE Problem 4.16RE Problem 4.17RE Problem 4.18RE Problem 4.19RE Problem 4.20RE Problem 4.21RE Problem 4.22RE Problem 4.23RE Problem 4.24RE Problem 4.25RE: Largemouth bass Organizers of a fishing tournament believe that the lake holds a sizable population... Problem 4.26RE Problem 4.27RE: Language Neurological research has shown that in about 80% of people language abilities reside in... Problem 4.28RE Problem 4.29RE: Teen smoking 2015 The Centers for Disease Control and Prevention reports that 9.3% of surveyed high... Problem 4.30RE Problem 4.31RE Problem 4.32RE Problem 4.33RE: Pregnant? Suppose that 70% of the women who suspect they may be pregnant and purchase an in-home... Problem 4.34RE: Safety Observers in Texas watched children at play in eight communities. Of the 814 children seen... Problem 4.35RE Problem 4.36RE Problem 4.37RE Problem 4.38RE: Grade inflation In 1996, 20% of all students at a major university had an overall grade point... Problem 4.39RE Problem 4.40RE Problem 4.41RE Problem 4.42RE Problem 4.43RE Problem 4.44RE Problem 4.45RE Problem 4.46RE Problem 4.47RE: Streams Researchers in the Adirondack Mountains collect data on a random sample of streams each... Problem 4.48RE: Skin cancer In February 2012, MedPage Today reported that researchers used vemurafenib to treat... Problem 4.49RE: Bread Clarksburg Bakery is trying to predict how many loaves to bake. In the past 100 days, the... Problem 4.50RE Problem 4.51RE Problem 4.52RE: Batteries We work for the Watchdog for the Consumer consumer advocacy group. Weve been asked to look... Problem 4.53RE Problem 4.54RE Problem 5.1RE Problem 5.2RE Problem 5.3RE Problem 5.4RE Problem 5.5RE Problem 5.6RE Problem 5.7RE: Eclampsia deaths Refer again to the research summarized in Exercise R5.6. Is there any evidence that... Problem 5.8RE Problem 5.9RE: More errors A corporation with a fleet of vehicles wanted to test the cost-effectiveness of using... Problem 5.10RE: Preemies Among 242 Cleveland-area children born prematurely at low birthweights between 1977 and... Problem 5.11RE: Crawling A study found that babies born at different times of the year may develop the ability to... Problem 5.12RE: Mazes and smells Can pleasant smells improve learning? Researchers timed 21 subjects as they tried... Problem 5.13RE: Pottery Archaeologists can use the chemical composition of clay found in pottery artifacts to... Problem 5.14RE: Grant writing Does race matter when applying for National Institutes of Health grants? A study found... Problem 5.15RE: Feeding fish In the midwestern United States, a large aquaculture industry raises largemouth bass.... Problem 5.17RE: Age In a study of how depression may affect ones ability to survive a heart attack, the researchers... Problem 5.18RE Problem 5.19RE: Eating disorders A study conducted in the multicultural Spanish city of Ceuta investigated the... Problem 5.20RE: Cesareans Some people fear that differences in insurance coverage can affect health care decisions.... Problem 5.21RE Problem 5.23RE: Teach for America, part II The study described in Exercise R5.21 also looked at scores in... Problem 5.25RE Problem 5.28RE: Genetics Two human traits controlled by a single gene are the ability to roll ones tongue and... Problem 5.29RE Problem 5.30RE: Hard water In an investigation of environmental causes of disease, data were collected on the annual... Problem 5.31RE Problem 5.32RE Problem 5.33RE Problem 5.34RE: AP statistics scores 2016 In 2016, about 200,000 statistics students nationwide took the Advanced... Problem 5.35RE Problem 5.36RE Problem 5.37RE Problem 5.38RE: Age and party 2016 The Pew Research Center conducted a representative telephone survey in October of... Problem 5.39RE: Eye and hair color A survey of 1021 school-age children was conducted by randomly selecting children... Problem 5.40RE Problem 5.41RE Problem 5.42RE Problem 5.43RE Problem 5.44RE Problem 5.45RE Problem 5.46RE: Learning math Developers of a new math curriculum called Accelerated Math compared performances of... Problem 5.47RE Problem 5.48RE: Dairy sales Peninsula Creameries sells both cottage cheese and ice cream. The CEO recently noticed... Problem 5.49RE: Diet Thirteen overweight women volunteered for a study to determine whether eating specially... Problem 5.50RE: Cramming Students in two basic Spanish classes were required to learn 50 new vocabulary words. One... Problem 5.51RE Problem 5.52RE: Newspapers Who reads the newspaper more, men or women? Eurostat, an agency of the European Union... format_list_bulleted