Essentials of Statistics (6th Edition)
6th Edition
ISBN: 9780134685779
Author: Mario F. Triola
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 11.2, Problem 8BSC
To determine
To test: The claim that texting while driving is independent of irregular seat belt usage.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The following table shows the cross-classification of accounting practices (either straight line, declining balance, or both) and country (either France, Germany, or United Kingdom).
France
Germany
United Kingdom
Straight Line
20
11
30
Declining Balance
14
16
15
Both
15
23
13
Set up the competing hypotheses to determine if accounting practice and country are dependent.
What is the degrees of freedom for the test.
c. Calculate the value of the test statistic ().
The following table shows the cross-classification of accounting practices (either straight line, declining balance, or both) and country (either France, Germany, or United Kingdom).
France
Germany
United Kingdom
Straight Line
20
11
30
Declining Balance
14
16
15
Both
15
23
13
Set up the competing hypotheses to determine if accounting practice and country are dependent.
What is the degrees of freedom for the test.
Calculate the value of the test statistic ( x2 ).
A food services manager wants to know if there is a relationship between gender (male or female) and the preferred condiment on a hot dog. The following table summarizes the results. Test the hypothesis with a significance level of 1%.
CONDIMENT
Ketchup
Mustard
Relish
Total
Male
15
23
10
48
Female
25
19
8
52
Total
40
42
18
100
State the hypotheses.
What statistical test should be used to determine if there is a relationship between gender and the preferred hotdog condiment?
Determine the appropriate critical value and set up the decision rule.
Compute the test statistic.
Interpret your results.
Give your conclusion.
Chapter 11 Solutions
Essentials of Statistics (6th Edition)
Ch. 11.1 - Cybersecurity The table below lists leading digits...Ch. 11.1 - 2. Cybersecurity When using the data from Exercise...Ch. 11.1 - Cybersecurity The accompanying Statdisk results...Ch. 11.1 - Cybersecurity What do the results from the...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...
Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - In Exercises 520, conduct the hypothesis test and...Ch. 11.1 - Ben fords Law. According to Benfords law, a...Ch. 11.1 - Ben fords Law. According to Benfords law, a...Ch. 11.1 - Ben fords Law. According to Benfords law, a...Ch. 11.1 - Ben fords Law. According to Benfords law, a...Ch. 11.1 - Assumed mid-point x=fxn=39825180=221.25...Ch. 11.2 - Handedness and Cell Phone Use The accompanying...Ch. 11.2 - Ear Preference for Cell Phone Use 2. Hypotheses...Ch. 11.2 - Hypothesis Test The accompanying TI-83/84 Plus...Ch. 11.2 - Right-Tailed, Left-Tailed, Two-Tailed Is the...Ch. 11.2 - Prob. 5BSCCh. 11.2 - In Exercises 5-18, test the given claim. 6. Splint...Ch. 11.2 - In Exercises 5-18, test the given claim. 7....Ch. 11.2 - Prob. 8BSCCh. 11.2 - In Exercises 5-18, test the given claim. 9. Four...Ch. 11.2 - In Exercises 5-18, test the given claim. 10....Ch. 11.2 - In Exercises 5-18, test the given claim. 11....Ch. 11.2 - In Exercises 5-18, test the given claim. 12. Nurse...Ch. 11.2 - Soccer Strategy In soccer, serious fouls in the...Ch. 11.2 - In Exercises 5-18, lest the given claim. 14. Is...Ch. 11.2 - In Exercises 518, test the given claim. 15....Ch. 11.2 - In Exercises 5-18, test the given claim. 16....Ch. 11.2 - Prob. 17BSCCh. 11.2 - In Exercises 5-18, test the given claim. 18....Ch. 11.2 - In Exercises 5-18, lest the given claim. 19. Car...Ch. 11.2 - Is the Home Field Advantage Independent of the...Ch. 11.2 - Equivalent Tests A X2 test involving a 2 2 table...Ch. 11.2 - Using Yatess Correction for Continuity The...Ch. 11.3 - In Exercises 1-4, use the following listed arrival...Ch. 11.3 - In Exercises 1-4, use the following listed arrival...Ch. 11.3 - In Exercises 1-4, use the following listed arrival...Ch. 11.3 - In Exercises 1-4, use the following listed arrival...Ch. 11.3 - In Exercises 5-16, use analysis of variance for...Ch. 11.3 - In Exercises 5-16, use analysis of variance for...Ch. 11.3 - In Exercises 5-16, use analysis of variance for...Ch. 11.3 - In Exercises 5-16, use analysis of variance for...Ch. 11.3 - In Exercises 5-16, use analysis of variance for...Ch. 11.3 - Prob. 10BSCCh. 11.3 - Triathlon Times Jeff Parent is a statistics...Ch. 11.3 - Arsenic in Rice Listed below are amounts of...Ch. 11.3 - Prob. 13BSCCh. 11.3 - Speed Dating Listed below are attribute ratings of...Ch. 11.3 - Tukey Test A display of the Bonferroni test...Ch. 11.3 - Two-Way ANOVA The pulse rates in Table 12-3 from...Ch. 11 - Exercises 1-5 refer to the sample data in the...Ch. 11 - Exercises 15 refer to the sample data in the...Ch. 11 - Exercises 15 refer to the sample data in the...Ch. 11 - Prob. 4CQQCh. 11 - Exercises 15 refer to the sample data in the...Ch. 11 - Questions 610 refer to the sample data in the...Ch. 11 - Questions 610 refer to the sample data in the...Ch. 11 - Questions 6-10 refer to the sample data in the...Ch. 11 - Questions 6-10 refer to the sample data in the...Ch. 11 - Motor Vehicle Fatalities The table below lists...Ch. 11 - Tooth Fillings The table below shows results from...Ch. 11 - American Idol Contestants on the TV show American...Ch. 11 - Clinical Trial of Lipitor Lipitor is the trade...Ch. 11 - Weather-Related Deaths For a recent year, the...Ch. 11 - Weather-Related Deaths Review Exercise 5 involved...Ch. 11 - Chocolate and Happiness In a survey sponsored by...Ch. 11 - Chocolate and Happiness Use the results from part...Ch. 11 - Chocolate and Happiness Use the results from part...Ch. 11 - One Big Bill or Many Smaller Bills In a study of...Ch. 11 - 6. Probability Refer to the results from the 150...Ch. 11 - Car Repair Costs Listed below are repair costs (in...Ch. 11 - Forward Grip Reach and Ergonomics When designing...Ch. 11 - Use Statdisk, Minitab, Excel, StatCrunch, a...Ch. 11 - FROM DATA TO DECISION Critical Thinking: Was...Ch. 11 - Cola Weights Data Set 26 Cola Weights and Volumes...Ch. 11 - Speed Dating Data Set 18 Speed Dating in Appendix...Ch. 11 - Author Readability Pages were randomly selected by...
Knowledge Booster
Similar questions
- What is meant by the sample space of an experiment?arrow_forwardThe results of a random sample of students by type of school and their attitudes on safety steps taken by the school staff are shown in the table below. At the 5% significance level, can you conclude that attitudes about safety steps taken by the school staff are related to the type of school? School staff has School Type Taken all steps for student safety Taken some steps for student safety Public 40 51 Private 64 34arrow_forwardThe table cross-classifies 68,694 passengers in cars and light trucks involved in accidents in the state of Maine by whether or not they were wearing a seat belt and by whether or not they were injured or killed. The study is using seatbelt wearing to predict injury/death. Injured or Killed? Wore Seatbelt? Yes No Total No 3,865 27,037 30,902 Yes 2,409 35,383 37,792 Total 6,274 62,420 68,694 What are the odds that a passenger was injured or killed if he/she did not wear a seatbelt (Row 1 odds)? What are the odds that a passenger was injured or killed if he/she wore a seatbelt (Row 2 odds)? Interpret both results. Describe the strength of the association between seatbelt use and injury/death using the odds ratio. Calculate the odds ratio and interpret the result?arrow_forward
- A foundation asked each person in a representative sample of high school students and in a representative sample of high school teachers which of the rights guaranteed by the First Amendment they thought was the most important. Suppose that the sample size for each sample was 1,000. Data consistent with summary values from the study are summarized in the accompanying table. Most Important First Amendment Right Freedom of Speech Freedom of the Press Freedom of Religion Freedom to Peacefully Assemble Freedom to Petition the Government Students 655 30 250 20 45 Teachers 400 60 420 50 70 A button hyperlink to the SALT program that reads: Use SALT. (a) Carry out a hypothesis test to determine if there is convincing evidence that the proportions falling into the five First Amendment rights categories are not the same for teachers and students. Use a significance level of ? = 0.01.arrow_forward5. Researchers are investigating household-income level and whether the family owns their home or rents, in a particular city. They will consider the proportion of high-income households who own their home and the proportion of low-income households who own. They want to check whether the two categorical variables (income level and home-own-v.-rent) are related. Test at the 0.01 significance level.Table of number of households in each sub-category. Data Own Rent high-income 47 50 low-income 34 44 a) Identify the correct alternative hypothesis for this test. Household income level and home-ownership-v.-renting are independent. There is a relationship between household income level and home-ownership-v.-renting. There is no relationship between household income level and home-ownership-v.-renting. Household income level varies much more than home-ownership-v.-renting proportions. b) The χ2χ2test statistic value is: c) The P-value is: d) Based on this, we Reject H0H0 Do…arrow_forwardAgain, suppose you work for AMC Cinemas (a national chain of movie theaters). You try to forecast future revenue from movie ticket sales based on the number of competing theaters within 15 miles, the ticket price at the nearest competitor, advertising expenditures, the local unemployment rate, and average outdoor temperature. Answer the following questions. (a) Suppose your quantitative study uses a 5% significance level in all hypothesis tests. In words, explain what a 5% significance level means. (b) Suppose that, instead of movie ticket sales, you use the same independent variables to predict popcorn sales at theaters. Would you expect a regression model for popcorn sales to have a higher, lower, or similar R-square value in comparison to the regression model for movie ticket sales? Explain the reasoning behind your expectation.arrow_forward
- 3. A national retailer has completed an internal survey on its social media strategy. The key question in the survey is whether the stores managers think that the recently launched social media strategy is effective. The following is the output of a statistical analysis of the data: Social media Strategy is effective Store Managers No YesVancouver 40 55Manitoba 20 35Alberta 15 35 Based on this output, can the retailer conclude that the opinion of the store managers on the whether the recently launched social media strategy is effective is dependent on which region they belong to? Use a chi square test and a level of significance of 0.05arrow_forwardIn Exercises 5–18, test the given claim. Lie Detector The table below includes results from polygraph (lie detector) experiments conducted by researchers Charles R. Honts (Boise State University) and Gordon H. Barland (Department of Defense Polygraph Institute). In each case, it was known if the subject lied or did not lie, so the table indicates when the polygraph test was correct. Use a 0.05 significance level to test the claim that whether a subject lies is independent of the polygraph test indication. Do the results suggest that polygraphs are effective in distinguishing between truths and lies?arrow_forwardThe article “HIV-positive Smokers Considering Quitting: Differences by Race/Ethnicity” (E. Lloyd-Richardson, C. Stanton, et al., Am J Health Behav, 2008:3–15) reported that in a group of 230 European-American HIV-positive smokers, 102 of them had used a nicotine patch to try to quit smoking, and in a group of 72 Hispanic-American HIV-positive smokers, 20 had used a nicotine patch. Can you conclude that the proportion of patch users is greater among European-Americans?arrow_forward
- The following table shows the cross-classification of accounting practices (either straight line, declining balance, or both) and country (either France, Germany, or United Kingdom). France Germany United Kingdom Straight Line 20 11 30 Declining Balance 14 16 15 Both 15 23 13 Set up the competing hypotheses to determine if accounting practice and country are dependent. What is the degrees of freedom for the test. Calculate the value of the test statistic ( x2). Compute the p-value.arrow_forwardThe paper “Contemporary College Students and Body Piercing” (Journal of Adolescent Health [2004]: 58-61) described a survey of 450 undergraduate students at a state university in the southwest region of the United States. Each student in the sample was classified according to class standing (freshman, sophomore, junior, or senior) and body art category (body piercings only, tattoos only, both tattoos and body piercings, no body art). Use the data in the accompanying table to determine if there is evidence that there is an association between class standing and response to the body art question. Assume that it is reasonable to regard the sample of students as representative of the students at this university. Use α = .01.arrow_forwardThe General Social Survey polled 1280 men and 1531 women to determine their level of education. The results are presented in the following table. Test at the 0.01 level of significance if education level is independent of gender. Education Level No High School Diploma High School Diploma Associate’s Degree Bachelor’s Degree Graduate Degree Men 178 608 96 248 150 Women 186 827 128 259 131 (a) State the hypotheses. (b) Statetheteststatistic. (c) CalculatetheP-value. (d) Makeadecision. (e) Statetheconclusionaddressingtheoriginalclaim.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 Hill
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
Glencoe Algebra 1, Student Edition, 9780079039897...
Algebra
ISBN:9780079039897
Author:Carter
Publisher:McGraw Hill
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning