MyLab Statistics with Pearson eText -- Standalone Access Card -- for Statistical Reasoning for Everyday Life (5th Edition)
5th Edition
ISBN: 9780134678528
Author: Jeff Bennett, William L. Briggs, Mario F. Triola
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 2.3, Problem 35E
Percentages of Percentages. Exercises 33–36 describe changes in which the measurements themselves are percentages. Using the first percentage as the reference value, express each change in two ways: (1) as an absolute difference in terms of percentage points and (2) as a relative difference in terms of a percentage.
35. Survival Rates. The five-year survival rate for Caucasians for all forms of cancer increased from 39% in the 1960s to 61% now.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Statistical Thinking Health Survey: In a COVID-19 survey of 1200 adults in the United States, 60% said that they wear masks and sanitize their hands before riding public transportation. Identify the sample and population. Is the value of 60% a statistic or parameter? What is the level of measurement of the value of 60%? (nominal, ordinal, interval, ratio) Are the numbers of subjects in the surveys discrete or continuous?
In Exercises 29–32, identify the level of measurement of the data as nominal, ordinal, interval, or ratio. Also, explain what is wrong with the given calculation.
Temperatures As this exercise is being written, it is 80°F at the author’s home and it is 40°F in Auckland, New Zealand, so it is twice as warm at the author’s home as it is in Auckland, New Zealand.
Can someone explain this from a mathematical perspective? Model the relationship between the fraction of islands occupied by a species and time. There is a fixed number of islands. The distribution of the species across all islands is maintained by a balance between local extinctions and local colonization events.
Chapter 2 Solutions
MyLab Statistics with Pearson eText -- Standalone Access Card -- for Statistical Reasoning for Everyday Life (5th Edition)
Ch. 2.1 - Qualitative versus Quantitative. What is the...Ch. 2.1 - Discrete versus Continuous. Distinguish between...Ch. 2.1 - Measurement Levels. What do we mean by data at the...Ch. 2.1 - Interval versus Ratio. Explain why temperatures on...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...
Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Does It Make Sense? For Exercises 58, determine...Ch. 2.1 - Qualitative versus Quantitative Data. In Exercises...Ch. 2.1 - Qualitative versus Quantitative Data. In Exercises...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Discrete or Continuous. In Exercises 1928, state...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Levels of Measurement. For the data described in...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Meaningful Ratios? In Exercises 4148, determine...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Prob. 53ECh. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.1 - Prob. 55ECh. 2.1 - Complete Classification. In Exercises 4956,...Ch. 2.2 - Error Type. Distinguish between random errors and...Ch. 2.2 - Absolute and Relative. Distinguish between the...Ch. 2.2 - Accuracy and Precision. Distinguish between...Ch. 2.2 - Honest Numbers. Why can it be misleading to give...Ch. 2.2 - Does It Make Sense? For Exercises 58, determine...Ch. 2.2 - Does It Make Sense? For Exercises 58, determine...Ch. 2.2 - Does It Make Sense? For Exercises 58, determine...Ch. 2.2 - Does It Make Sense? For Exercises 58, determine...Ch. 2.2 - IRS. An IRS agent reviews tax returns to identify...Ch. 2.2 - Safe Air Travel. Before taking off, a pilot is...Ch. 2.2 - Technical Specifications. A smartphone battery is...Ch. 2.2 - Crime Statistics. Former New York City Police...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Sources of Errors. For each measurement described...Ch. 2.2 - Absolute and Relative Errors. In Exercises 2124,...Ch. 2.2 - Absolute and Relative Errors. In Exercises 2124,...Ch. 2.2 - Absolute and Relative Errors. In Exercises 2124,...Ch. 2.2 - Absolute and Relative Errors. In Exercises 2124,...Ch. 2.2 - Minimizing Errors. Twenty-five people, including...Ch. 2.2 - Minimizing Errors. When a model 22F car battery is...Ch. 2.2 - Accuracy and Precision in Corvette Weight. A new...Ch. 2.2 - Accuracy and Precision in Height. Assume that your...Ch. 2.2 - Accuracy and Precision in Weight. Suppose your...Ch. 2.2 - Prob. 30ECh. 2.2 - Believable Facts? Exercises 3138 give statements...Ch. 2.2 - Believable Facts? Exercises 3138 give statements...Ch. 2.2 - Prob. 33ECh. 2.2 - Believable Facts? Exercises 3138 give statements...Ch. 2.2 - Prob. 35ECh. 2.2 - Believable Facts? Exercises 3138 give statements...Ch. 2.2 - Believable Facts? Exercises 3138 give statements...Ch. 2.2 - Believable Facts? Exercises 3138 give statements...Ch. 2.3 - Statistical Literacy and Critical Thinking...Ch. 2.3 - Percentage Difference. Distinguish between...Ch. 2.3 - Of versus More Than. Explain the difference...Ch. 2.3 - Percentage Points. Explain the difference between...Ch. 2.3 - Does It Make Sense? For Exercises 58, determine...Ch. 2.3 - Does It Make Sense? For Exercises 58, determine...Ch. 2.3 - Does It Make Sense? For Exercises 58, determine...Ch. 2.3 - Does It Make Sense? For Exercises 58, determine...Ch. 2.3 - Concepts and Applications Fractions, Decimals,...Ch. 2.3 - Fractions, Decimals, Percentages. Express the...Ch. 2.3 - Percentage Practice. A study was conducted of...Ch. 2.3 - Percentage Practice. A study was conducted to...Ch. 2.3 - Percentage of Media commonly report survey...Ch. 2.3 - Percentage. A New York Times editorial criticized...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Relative Change. Exercises 1522 each provide two...Ch. 2.3 - Surveys. Some important analyses of survey results...Ch. 2.3 - Surveys. Some important analyses of survey results...Ch. 2.3 - Surveys. Some important analyses of survey results...Ch. 2.3 - Surveys. Some important analyses of survey results...Ch. 2.3 - Of versus More Than. Fill in the blanks in...Ch. 2.3 - Of versus More Than. Fill in the blanks in...Ch. 2.3 - Of versus More Than. Fill in the blanks in...Ch. 2.3 - Of versus More Than. Fill in the blanks in...Ch. 2.3 - Margin of Error. A Gallup poll of 1012 American...Ch. 2.3 - Margin of Error. A Pew Research Center survey of...Ch. 2.3 - Percentages of Percentages. Exercises 3336...Ch. 2.3 - Percentages of Percentages. Exercises 3336...Ch. 2.3 - Percentages of Percentages. Exercises 3336...Ch. 2.3 - Percentages of Percentages. Exercises 3336...Ch. 2.3 - TV Share. A recent Super Bowl football game had a...Ch. 2.3 - Misleading Percentage. In a Gallup poll of 1236...Ch. 2.4 - Index Number. What is an index number? Briefly...Ch. 2.4 - CPI. What is the Consumer Price Index (CPI)? How...Ch. 2.4 - Inflation. In making price comparisons, why is it...Ch. 2.4 - CPI Change. If the CPI increases, must wages also...Ch. 2.4 - Does It Make Sense? For Exercises 58, determine...Ch. 2.4 - Does It Make Sense? For Exercises 58, determine...Ch. 2.4 - Does It Make Sense? For Exercises 58, determine...Ch. 2.4 - Does It Make Sense? For Exercises 58, determine...Ch. 2.4 - Consumer Price Index. In Exercises 916, use the...Ch. 2.4 - Consumer Price Index. In Exercises 916, use the...Ch. 2.4 - Consumer Price Index. In Exercises 916, use the...Ch. 2.4 - Consumer Price Index. In Exercises 916, use the...Ch. 2.4 - Prob. 13ECh. 2.4 - Consumer Price Index. In Exercises 916, use the...Ch. 2.4 - Consumer Price Index. In Exercises 916, use the...Ch. 2.4 - Consumer Price Index. In Exercises 916, use the...Ch. 2.4 - Coffee Index. In Exercises 1720, use the following...Ch. 2.4 - Prob. 18ECh. 2.4 - Prob. 19ECh. 2.4 - Coffee Index. In Exercises 1720, use the following...Ch. 2.4 - Pizza Cost and Subway Fare. The pizza connection...Ch. 2.4 - Pizza Cost and Subway Fare. The pizza connection...Ch. 2.4 - Pizza Cost and Subway Fare. The pizza connection...Ch. 2.4 - Pizza Cost and Subway Fare. The pizza connection...Ch. 2.4 - Prob. 25ECh. 2.4 - Prob. 26ECh. 2.4 - Prob. 27ECh. 2.4 - Housing Price Index. Realtors use an index to...Ch. 2.4 - Prob. 29ECh. 2.4 - Housing Price Index. Realtors use an index to...Ch. 2.4 - Prob. 31ECh. 2.4 - Housing Price Index. Realtors use an index to...Ch. 2 - Germs. In a Wakefield Research survey, 1003...Ch. 2 - Health Care Spending. Total spending on health...Ch. 2 - Prob. 3CRECh. 2 - Minimum Wage. The following table lists the...Ch. 2 - Braking reaction times of 36 randomly selected...Ch. 2 - What is the level of measurement of the values...Ch. 2 - Prob. 3CQCh. 2 - A researcher measures the braking reaction time of...Ch. 2 - Braking reaction times of 36 randomly selected...Ch. 2 - Recorded survey results include the states in...Ch. 2 - Prob. 7CQCh. 2 - Prob. 8CQCh. 2 - Prob. 9CQCh. 2 - Prob. 10CQCh. 2 - Politics Who Benefited Most from Lower Tax Rates?...Ch. 2 - Prob. 1.2FCh. 2 - Prob. 1.3F
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.Similar questions
- Heart Disease In a certain country, the number of deaths due to heart disease decreased from 235 in one year to 221 in the next year. What percentage decrease in deaths due to heart disease does this represent?arrow_forwardThe price of a Hershey's Bar has increased from 1947 to 1982. However, the Consumer Price Index has also increased. Remember that the Consumer Price Index shows how the prices for goods and services change over time. Year Cost of a Hershey Bar (in cents) CPI (Consumer Price Index) 1947 5 22.3 1982 30 96.5 Use the table above and select the correct statement to fill in the blank for this statement: From 1947 to 1982, the relative increase in the price of a Hershey's bar was ____________________ the relative increase in CPI. lower than the same as higher thanarrow_forwardRoman, a health data officer, was tasked to create a report describing the height of all the children ages 12-15 years in a small town in Rome. He measured the height of all the 37 children (ages 12-15 years) in that small town. Answer the table showing the number and percentage of children ages 12 to 15 years according to sex. Sex f Rel f Male <2 decimal places> Female <2 decimal places> Σf <2 decimal places>arrow_forward
- Journal of Economic, Political and Business Analysis XIV (2) delivers a report on the stagnation of the ceramic industry in Indonesia. The causes of stagnation are inefficiency, decreased purchasing power and increased production costs. Following is the development of sales in 2001 and 2002. • Calculate the average, median and mode scores for the 2 years of sales • How is the relationship between these concentration sizes. • What are your comments on the development of sales from 2001 to 2002? And in what year the sales frequency of the above companies was more stable.arrow_forwardA correlation coefficient (r) of .40 implies that: ____ Group of answer choices 16 percent of the variation in the dependent variable is explained by the independent variable. 84 percent of the variation in the dependent variable is explained by the independent variable. 60 percent of the variation in the dependent variable is explained by the independent variable. 40 percent of the variation in the dependent variable is explained by the independent variable.arrow_forwardPart II: Group Mean Difference Scenario: In an experiment, 10 participants are given 10 pages of printed material to proofread for errors. 10 other participants proofread the same material on a computer screen. The independent variable is the medium through which participants read (printed versus digital). The dependent variable is the number of errors detected in a 5-minute period. Printed group (Group 1) mean = 80% accurate; Digital group (Group 2) mean = 20% accurate [note: be sure to use percentage here, so 80 for the printed group, 20 for the digital group]. The critical t-value = 1.729 for an alpha level of .05. 1. What is the null hypothesis that is being tested? 2. What is the alternative hypothesis? 3. Calculate your data’s t-value (tObserved). Use the following formula: Data Printed Material group: Standard deviation (S1) = 11.15 (Hint: calculate variance first) Online Material group: Standard deviation (S2)= 11.83 (Hint: calculate variance first) 4. Compare the…arrow_forward
- Ecologists mapped a large Canadian forest plot dominated the Douglas fir, with an understory of western hemlock and western red cedar. The two-way table below records all 2,050 trees in the plot byspecies and life stage. Sapling trees (young trees shorter than 1.3 meters) are indicative of the future of the forest. Test the relationship between species and life stage. What proportion of trees would you expect of be saplings if the null hypothesis was true? Also what would be the null and alternative hypothesis? How many western red cedars would you expect to be saplings if the null hypothesis was true?arrow_forwardA soil scientist has just developed a new type of fertilizer and she wants to determine whether it helps carrots grow larger. She sets up several pots of soil and plants one carrot seed in each pot. Fertilizer is added to half the pots. All the pots are placed in a temperature-controlled greenhouse where they receive adequate light and equal amounts of water. After two months of growth, the scientist harvests the carrots and weighs them (in kilograms). Below is a data table showing the weight of the carrots at the end of the growing period from the two treatment groups. When analyzing this dataset with a t-test, the hypothesis states that the average size of the carrots from each treatment are the same, whereas the hypothesis states that the fertilized carrots are larger in size. To analyze this data set, should the scientist use a -tailed t-test? After performing a t-test, what is the calculated t-value for this data set? (Round your answer to four decimal places) Use the…arrow_forwardGolf members have a median age of 39 years and an interquartile range of 12 years. What can you conclude about the percentage of golf members aged between 33 and 45? The percentage is at most 60%. The percentage is near 25%. The percentage is near 50%. The percentage was unable to be calculated.arrow_forward
- The scatterplot illustrates the relationship between two quantitative variables: the number of seeds planted per square foot and the yield of the crop (in pounds per square foot). Which of the following is an accurate description of the scatterplot? The more seeds that are planted per square foot, the smaller the expected yield of the crop. The more seeds that are planted per square foot, the larger the expected yield of the crop. The expected yield of a crop is high whenever the number of seeds planted per square foot is small or large. A larger yield is expected when the number of seeds per square foot is around 60. The expected yield of a crop is low whenever the number of seeds planted per square foot is small or large. A larger yield is expected when the number of seeds per square foot is around 60.arrow_forwardExercise: Identifying scales of measurementEach of the following scenarios involves measuring one or more variables. Decide whether the variousmeasurements reflect nominal, ordinal, interval, or ratio scales, and justify your choices. Be careful, asthe answers are not always as obvious as they might initially appear.1. An environmental scientist collects water samples from screams and rivers near largeindustrial plants and saves exactly 1 liter of water from each sample. Then, back at the lab,the researcher determines the amounts of certain health-jeopardizing bacteria in each sample.What measurement scale does the measurement of bacteria content reflect?2. A market researcher is studying the relationship between (a) a country's average annualrelative humidity levels and (b) the number of raincoats sold in the country during the year.What scales underlie the two variables in this study?3. A sports journalist in Spain wants to determine whether a football club's fan club…arrow_forwardIdentify if the quantity reported is a Parameter or a Statistic 6. The average amount of time spent in a day by Mr. John’s students in their online classes is 4 hrs. and 25 minutes. 7. The average annual family income of all 210 families of a small rural town is Php127,530. 8. The average amount spent on clothing during the Enhanced Community Quarantine (ECQ) period of a sample of employees of government agencies in Baguio City is Php1,250.75. 9. The average number of online purchases made in a month by randomly selected SLU teaching employees is 8.5. 10. The average number of trades per week in the stock market made by the employees of Mr. Abraqs during the COVID-19 pandemic period is 5.2.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillFunctions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage LearningBig Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageTrigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
Functions and Change: A Modeling Approach to Coll...
Algebra
ISBN:9781337111348
Author:Bruce Crauder, Benny Evans, Alan Noell
Publisher:Cengage Learning
Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Trigonometry (MindTap Course List)
Trigonometry
ISBN:9781337278461
Author:Ron Larson
Publisher:Cengage Learning
Linear Algebra: A Modern Introduction
Algebra
ISBN:9781285463247
Author:David Poole
Publisher:Cengage Learning
Use of ALGEBRA in REAL LIFE; Author: Fast and Easy Maths !;https://www.youtube.com/watch?v=9_PbWFpvkDc;License: Standard YouTube License, CC-BY
Compound Interest Formula Explained, Investment, Monthly & Continuously, Word Problems, Algebra; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=P182Abv3fOk;License: Standard YouTube License, CC-BY
Applications of Algebra (Digit, Age, Work, Clock, Mixture and Rate Problems); Author: EngineerProf PH;https://www.youtube.com/watch?v=Y8aJ_wYCS2g;License: Standard YouTube License, CC-BY