Problem 1SE: Tests a. In Chapter 8, you learned some tests of proportions. Are tests of proportions used for... Problem 2SE: In Chapter 9, you learned some tests of means. Are tests of means used for numerical or categorical... Problem 3SE: Crime and Gender A statistics student conducted a study in Ventura County, California, that looked... Problem 4SE: Red Cars and Stop Signs The table shows the raw data for the results of a student survey of 22 cars... Problem 5SE: The table summarizes the outcomes of a study that students carried out to determine whether... Problem 6SE: Finger Length There is a theory that relative finger length depends on testosterone level. The table... Problem 7SE: Student Loans-California According to a 2017 report, 53 of college graduates in California had... Problem 8SE: Student Loans-Illinois According to a 2017 report, 64 of college graduate in Illinois had student... Problem 9SE: Breakfast Habits (Example 1 2) In a 2015 study by Nanney et al. and published in the Journal of... Problem 10SE: Fast Food Habits In the study referenced in exercise 10.8, researchers also asked whether or not... Problem 11SE: Mummies with Heart Disease According to the website MedicalNewsToday.com, coronary artery disease... Problem 12SE: Texting While Driving According to the 2015 High School Youth Risk Behavior Survey, 41.5 of high... Problem 13SE: Violins Stradivarius violins, made in the 1700s by a man of the same name, are worth millions of... Problem 14SE: Coin Flips You flip a coin 100 times and get 58 heads and 42 tails. Calculate the chi-square... Problem 15SE Problem 16SE Problem 17SE: Are Humans Like Random Number Generators? (Example 3) One of the authors collected data from a class... Problem 18SE: Is the Random Number Table Really Random? We counted ones, twos, threes, fours, and fives from a few... Problem 19SE: Coin Spins A penny was spun on a hard, flat surface 50 times, and the result was 15 heads and 35... Problem 20SE: Internet Usage In 2018 Pew Research reported that 11 of Americans do not use the Internet. Suppose... Problem 21SE: Dreidel Spinning When playing Dreidel, (see photo) you sit in a circle with friends or relatives and... Problem 22SE: Plastic Dreidel See exercise 10.21 for an explanation of playing with the dreidel. This time the... Problem 23SE: Is the Six-Sided Die Fair? The table shows the results of rolling a six-sided die 120 times. Test... Problem 24SE: Is the Six-Sided Die Fair? Repeat the chi-square test (all four steps) from exercise 10.23, but this... Problem 25SE: Violins Professional musicians listened to five violins being played, without seeing the... Problem 26SE: Mummies with Heart Disease Exercise 10.11 on artery disease in mummies indicated that 9 out of 16... Problem 27SE: Party and Right Direction (Example 4) Suppose a polling organization asks a random sample of people... Problem 28SE: Antibiotic or Placebo A large number of surgery patients get infections after surgery, which can... Problem 29SE: Relevant Education (Example 5) A 2018 Gallup poll asked college graduates if they agreed that the... Problem 30SE Problem 31SE: Fitness The table shows the percentage of all men and women in the United States aged 18 to 44 who... Problem 32SE: Food Security The table shows the percentage of all U.S. households who are food secure, have low... Problem 33SE: Fitness App Use and Gender (Example 6) In a 2015 study reported in the Journal of American College... Problem 34SE: Diet App Use and Gender In the study referenced in exercise 10.33, researchers also collected data... Problem 35SE: HPV Vaccination Rates A vaccine is available to pre-vent the contraction of human papillomavirus... Problem 36SE: HPV Vaccine Literacy Rates In the study described in 10.35 researchers also asked survey respondents... Problem 37SE: Gender and Happiness of Marriage The table shows the results of a two-way table of gender and... Problem 38SE: Is Smiling Independent of Age? Randomly chosen people were observed for about 10 seconds in several... Problem 39SE: Preschool Attendance and High School Graduation Rates (Example 7) The Perry Preschool Project was... Problem 40SE: Preschool Attendance and High School Graduation Rates for Females The Perry Preschool Project data... Problem 41SE: Preschool Attendance and High School Graduation Rates for Males The Perry Preschool Project data... Problem 42SE Problem 43SE Problem 44SE: Marijuana Legalization The 2018 Pew Research poll in exercise 10.43 also reported responses by... Problem 45SE: Brain Bleed Treatment In a 2018 article published in The Lancet, Sprigg et al. studied the effect of... Problem 46SE: Multiple Sclerosis Treatment In a 2018 article published in The Lancet, Kappos et al. studied the... Problem 47SE Problem 48SE: Political Party Affiliation and Generation A 2018 Pew Research poll recorded respondents political... Problem 49SE Problem 50SE: Night Shifts A random sample of nurses working night shifts were asked whether they were fatigued... Problem 51SE: Gender and Political Party Affiliation The data in the table are from a General Social Survey and... Problem 52SE: Children and Happiness The data in the table come from a General Social Survey. The top row is the... Problem 53SE Problem 54SE: Nice Rats Rats had a choice of freeing another rat or eating chocolate by themselves. Most of the... Problem 55SE: Peanut Allergies In a 2015 study reported in the New England Journal of Medicine, Du Toit et al.... Problem 56SE: Peanut Allergies In the study described in exercise 10.55, researchers (Du Toits et al., 2015) also... Problem 57CRE Problem 58CRE: In exercises 10.57 to 10.64, choose an appropriate test from those listed below. Unless otherwise... Problem 59CRE Problem 60CRE Problem 61CRE Problem 62CRE: In exercises 10.57 to 10.64, choose an appropriate test from those listed below. Unless otherwise... Problem 63CRE Problem 64CRE: In exercises 10.57 to 10.64, choose an appropriate test from those listed below. Unless otherwise... Problem 65CRE: Perry Preschool Arrests The Perry Preschool Project discussed in exercises 10.39 to 10.41 found that... Problem 66CRE: Parental Training and Criminal Behavior of Children In Montreal, Canada, an experiment was done with... Problem 67CRE Problem 68CRE Problem 69CRE: Harassment in the Workplace An 2017 NPR/Marist poll asked a random sample of Americans if they had... Problem 70CRE Problem 71CRE: Robot Cockroaches Cockroaches tend to rest in groups and prefer dark areas. In a study by Halloy et... Problem 72CRE: Robot Cockroaches Refer to the description in exercise 10.71. There were 22 trials with only... Problem 73CRE Problem 74CRE: Conviction Rate with Opposite Race Here are the conviction rates with the “stand your ground” data... format_list_bulleted