
Introductory Statistics
1st Edition
ISBN: 9781938168208
Author: Barbara Illowsky, Susan Dean
Publisher: OpenStax College
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 10, Problem 99H
A recent drug survey showed an increase in the use of drugs and alcohol among local high school seniors as compared to the national percent. Suppose that a survey of 100 local seniors and 100 national seniors is conducted to see if the proportion of drug and alcohol use is higher locally than nationally. Locally, 65 seniors reported using drugs or alcohol within the past month, while 60 national seniors reported using them..
Expert Solution & Answer

Trending nowThis is a popular solution!

Students have asked these similar questions
PEER REPLY 1:
Choose a classmate's Main Post.
1. Indicate a range of values for the independent variable (x) that is reasonable
based on the data provided.
2. Explain what the predicted range of dependent values should be based on
the range of independent values.
In a company with 80 employees, 60 earn $10.00 per hour and 20 earn $13.00 per
hour.
Is this average hourly wage considered representative?
The following is a list of questions answered correctly on an exam. Calculate the
Measures of Central Tendency from the ungrouped data list.
NUMBER OF QUESTIONS ANSWERED CORRECTLY ON AN APTITUDE EXAM
112
72
69
97
107
73
92
76
86
73
126
128
118
127
124
82
104
132
134
83
92
108
96
100
92
115
76
91
102
81
95
141
81
80
106
84
119
113
98
75
68
98
115
106
95
100
85
94
106
119
Chapter 10 Solutions
Introductory Statistics
Ch. 10 - Two samples are shown in Table 10.2. Both have...Ch. 10 - A study is done to determine if Company A retains...Ch. 10 - Weighted alpha is a measure of risk-adjusted...Ch. 10 - The means of the number of revolutions per minute...Ch. 10 - Two types of valves are being tested to determine...Ch. 10 - A concerned group of citizens wanted to know if...Ch. 10 - A study was conducted to investigate how effective...Ch. 10 - A new prep class was designed to improve SAT test...Ch. 10 - Five ball players think they can throw the same...Ch. 10 - Two Population Means with Unknown Standard...
Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Two Population Means with Unknown Standard...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Two Population Means with Known Standard...Ch. 10 - Two Population Means with Known Standard...Ch. 10 - Two Population Means with Known Standard...Ch. 10 - Two Population Means with Known Standard...Ch. 10 - Two Population Means with Known Standard...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Comparing Two Independent Population Proportions....Ch. 10 - Comparing Two Independent Population Proportions....Ch. 10 - Comparing Two Independent Population Proportions....Ch. 10 - Comparing Two Independent Population Proportions....Ch. 10 - Comparing Two Independent Population Proportions....Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Matched or Paired Samples Use the following...Ch. 10 - Matched or Paired Samples Use the following...Ch. 10 - Matched or Paired Samples Use the following...Ch. 10 - Matched or Paired Samples Use the following...Ch. 10 - Matched or Paired Samples Use the following...Ch. 10 - Use the following information to answer next five...Ch. 10 - Use the following information to answer next five...Ch. 10 - Use the following information to answer next five...Ch. 10 - Use the following information to answer next five...Ch. 10 - Use the following information to answer next five...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - The mean number of English courses taken in a...Ch. 10 - A student at a four-year college claims that mean...Ch. 10 - At Rachel’s 11th birthday party, eight girls were...Ch. 10 - Mean entry-level salaries for college graduates...Ch. 10 - Marketing companies have collected data implying...Ch. 10 - Use the information from Appendix C to answer the...Ch. 10 - Use the information from Appendix C to answer the...Ch. 10 - Use the information from Appendix C to answer the...Ch. 10 - Use the information from Appendix C to answer the...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Suppose a statistics instructor believes that...Ch. 10 - Researchers interviewed street prostitutes in...Ch. 10 - A powder diet is tested on 49 people, and a liquid...Ch. 10 - Suppose a statistics instructor believes that...Ch. 10 - A study is done to determine if students in the...Ch. 10 - Parents of teenage boys often complain that auto...Ch. 10 - A group of transfer bound students wondered if...Ch. 10 - Some manufacturers claim that non-hybrid sedan...Ch. 10 - A baseball fan wanted to know if there is a...Ch. 10 - One of the questions in a study of marital...Ch. 10 - A recent drug survey showed an increase in the use...Ch. 10 - We are interested in whether the proportions of...Ch. 10 - Elizabeth Mjelde, an art history professor, was...Ch. 10 - A recent year was randomly picked from 1985 to the...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Researchers conducted a study to find out if there...Ch. 10 - Adults aged 18 years old and older were randomly...Ch. 10 - Two computer users were discussing tablet...Ch. 10 - A group of friends debated whether more men use...Ch. 10 - While her husband spent 21/2. hours picking out...Ch. 10 - We are interested in whether children’s...Ch. 10 - Joan Nguyen recently claimed that the proportion...Ch. 10 - Use the data sets found in Appendix C to answer...Ch. 10 - "To Breakfast or Not to Breakfast?" by Richard...Ch. 10 - Ten individuals went on a lowfat diet for 12 weeks...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - Use the following information to answer the next...Ch. 10 - A golf instructor is interested in determining if...Ch. 10 - A local cancer support group believes that the...Ch. 10 - A traveler wanted to know if the prices of hotels...Ch. 10 - A politician asked his staff to determine whether...Ch. 10 - A powder diet is tested on 49 people, and a liquid...Ch. 10 - A new chocolate bar is taste-tested on consumers....Ch. 10 - The mean number of English courses taken in a...Ch. 10 - A football league reported that the mean number of...Ch. 10 - A study is done to determine if students in the...Ch. 10 - According to a YWCA Rape Crisis Center newsletter,...Ch. 10 - According to a recent study, U.S. companies have a...Ch. 10 - A recent drug survey showed an increase in use of...Ch. 10 - A new SAT study course is tested on 12...Ch. 10 - University of Michigan researchers reported in the...Ch. 10 - Lesley E. Tan investigated the relationship...Ch. 10 - A golf instructor is interested in determining if...
Additional Math Textbook Solutions
Find more solutions based on key concepts
TRY IT YOURSELF 1
Find the mean of the points scored by the 51 winning teams listed on page 39.
Elementary Statistics: Picturing the World (7th Edition)
Using Technology. In Exercises 5–8, identify the indicated values or interpret the given display. Use the norma...
Elementary Statistics (13th Edition)
CHECK POINT 1 Write a word description of the set L = {a, b, c, d, e, f}.
Thinking Mathematically (6th Edition)
Heights and z-Scores The dotplot shows heights of college women; the mean is 64 inches (5 feet 4 inches), and t...
Introductory Statistics
Limits with trigonometric functions Find the limits in Exercises 43–50.
43.
University Calculus: Early Transcendentals (4th Edition)
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
- The following ordered data list shows the data speeds for cell phones used by a telephone company at an airport: A. Calculate the Measures of Central Tendency using the table in point B. B. Are there differences in the measurements obtained in A and C? Why (give at least one justified reason)? 0.8 1.4 1.8 1.9 3.2 3.6 4.5 4.5 4.6 6.2 6.5 7.7 7.9 9.9 10.2 10.3 10.9 11.1 11.1 11.6 11.8 12.0 13.1 13.5 13.7 14.1 14.2 14.7 15.0 15.1 15.5 15.8 16.0 17.5 18.2 20.2 21.1 21.5 22.2 22.4 23.1 24.5 25.7 28.5 34.6 38.5 43.0 55.6 71.3 77.8arrow_forwardIn a company with 80 employees, 60 earn $10.00 per hour and 20 earn $13.00 per hour. a) Determine the average hourly wage. b) In part a), is the same answer obtained if the 60 employees have an average wage of $10.00 per hour? Prove your answer.arrow_forwardThe following ordered data list shows the data speeds for cell phones used by a telephone company at an airport: A. Calculate the Measures of Central Tendency from the ungrouped data list. B. Group the data in an appropriate frequency table. 0.8 1.4 1.8 1.9 3.2 3.6 4.5 4.5 4.6 6.2 6.5 7.7 7.9 9.9 10.2 10.3 10.9 11.1 11.1 11.6 11.8 12.0 13.1 13.5 13.7 14.1 14.2 14.7 15.0 15.1 15.5 15.8 16.0 17.5 18.2 20.2 21.1 21.5 22.2 22.4 23.1 24.5 25.7 28.5 34.6 38.5 43.0 55.6 71.3 77.8arrow_forward
- Businessarrow_forwardhttps://www.hawkeslearning.com/Statistics/dbs2/datasets.htmlarrow_forwardNC Current Students - North Ce X | NC Canvas Login Links - North ( X Final Exam Comprehensive x Cengage Learning x WASTAT - Final Exam - STAT → C webassign.net/web/Student/Assignment-Responses/submit?dep=36055360&tags=autosave#question3659890_9 Part (b) Draw a scatter plot of the ordered pairs. N Life Expectancy Life Expectancy 80 70 600 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth O Life Expectancy Part (c) 800 70 60 50 40 30 20 10 1950 1970 1990 W ALT 林 $ # 4 R J7 Year of 2010 Birth F6 4+ 80 70 60 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth Life Expectancy Ox 800 70 60 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth hp P.B. KA & 7 80 % 5 H A B F10 711 N M K 744 PRT SC ALT CTRLarrow_forward
- Harvard University California Institute of Technology Massachusetts Institute of Technology Stanford University Princeton University University of Cambridge University of Oxford University of California, Berkeley Imperial College London Yale University University of California, Los Angeles University of Chicago Johns Hopkins University Cornell University ETH Zurich University of Michigan University of Toronto Columbia University University of Pennsylvania Carnegie Mellon University University of Hong Kong University College London University of Washington Duke University Northwestern University University of Tokyo Georgia Institute of Technology Pohang University of Science and Technology University of California, Santa Barbara University of British Columbia University of North Carolina at Chapel Hill University of California, San Diego University of Illinois at Urbana-Champaign National University of Singapore McGill…arrow_forwardName Harvard University California Institute of Technology Massachusetts Institute of Technology Stanford University Princeton University University of Cambridge University of Oxford University of California, Berkeley Imperial College London Yale University University of California, Los Angeles University of Chicago Johns Hopkins University Cornell University ETH Zurich University of Michigan University of Toronto Columbia University University of Pennsylvania Carnegie Mellon University University of Hong Kong University College London University of Washington Duke University Northwestern University University of Tokyo Georgia Institute of Technology Pohang University of Science and Technology University of California, Santa Barbara University of British Columbia University of North Carolina at Chapel Hill University of California, San Diego University of Illinois at Urbana-Champaign National University of Singapore…arrow_forwardA company found that the daily sales revenue of its flagship product follows a normal distribution with a mean of $4500 and a standard deviation of $450. The company defines a "high-sales day" that is, any day with sales exceeding $4800. please provide a step by step on how to get the answers in excel Q: What percentage of days can the company expect to have "high-sales days" or sales greater than $4800? Q: What is the sales revenue threshold for the bottom 10% of days? (please note that 10% refers to the probability/area under bell curve towards the lower tail of bell curve) Provide answers in the yellow cellsarrow_forward
- Find the critical value for a left-tailed test using the F distribution with a 0.025, degrees of freedom in the numerator=12, and degrees of freedom in the denominator = 50. A portion of the table of critical values of the F-distribution is provided. Click the icon to view the partial table of critical values of the F-distribution. What is the critical value? (Round to two decimal places as needed.)arrow_forwardA retail store manager claims that the average daily sales of the store are $1,500. You aim to test whether the actual average daily sales differ significantly from this claimed value. You can provide your answer by inserting a text box and the answer must include: Null hypothesis, Alternative hypothesis, Show answer (output table/summary table), and Conclusion based on the P value. Showing the calculation is a must. If calculation is missing,so please provide a step by step on the answers Numerical answers in the yellow cellsarrow_forwardShow all workarrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin HarcourtGlencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw HillHolt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL

Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt

Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill

Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Statistics 4.1 Point Estimators; Author: Dr. Jack L. Jackson II;https://www.youtube.com/watch?v=2MrI0J8XCEE;License: Standard YouTube License, CC-BY
Statistics 101: Point Estimators; Author: Brandon Foltz;https://www.youtube.com/watch?v=4v41z3HwLaM;License: Standard YouTube License, CC-BY
Central limit theorem; Author: 365 Data Science;https://www.youtube.com/watch?v=b5xQmk9veZ4;License: Standard YouTube License, CC-BY
Point Estimate Definition & Example; Author: Prof. Essa;https://www.youtube.com/watch?v=OTVwtvQmSn0;License: Standard Youtube License
Point Estimation; Author: Vamsidhar Ambatipudi;https://www.youtube.com/watch?v=flqhlM2bZWc;License: Standard Youtube License