Exam 4: Relationships Between Categorical Variables

Use the following information for questions: In the General Social Survey, respondents were asked "Would you approve of an adult male punching a stranger if the stranger was drunk and bumped into the man and his wife on the street?" A two-way table summarizing the results for 1006 respondents, by gender, is shown below: Chi-Square = 0.002, DF = 2, P-Value = 0.9990 -The percentage of females who responded 'Yes' was

Use the following information for questions: A study done by the Center for Academic Integrity at Rutgers University surveyed 2116 students at 21 colleges and universities. Some of the schools had an "honor code"and others did not. Of the students at schools with an honor code, 7% reported having plagiarized a paper via the Internet, while at schools with no honor code, 13% did so. (Sacramento Bee, Feb 29, 2000, D1.) -For this study, the relative risk of a student having plagiarized a paper via the Internet at a school with no honor code, compared to a school with an honor code is:

The relative risk of a 25-year-old woman developing invasive breast cancer within 5 years is 5.72 times greater than for a 20-year-old woman. If the 5-year risk of breast cancer for a 20 year old woman is 0.007%, what is the risk for a 25 year old woman?

The tables below show the financial aid results by gender for each program. -What percent of females received some sort of financial aid?

Use the following information for questions: A researcher conducted a study on college students to see if there was a link between gender and how often they have cheated on an exam. She asked two questions on a survey: (1) What is your gender? Male ___ Female ___ (2) How many times have you cheated on an exam while in college? Never __ 1 or 2 times ___ 3 or more times ___ A two-way table of observed counts follows: -What percent of the students in the study never cheated on an exam?

Use the following information for questions: In the General Social Survey, respondents were asked, "Do you agree with the following statement? "In spite of what some people say, the lot (situation/condition) of the average man is getting worse, not better." The results, for 989 respondents by gender, are shown below. -How many females in the sample agreed with the statement?

Use the following information for questions: A newspaper article reported that "Children who routinely compete in vigorous after-school sports on smoggy days are three times more likely to get asthma than their non-athletic peers."(Sacramento Bee, Feb 1, 2002, p. A1) -Of the following, which is the most important additional information that would be useful before making a decision about participation in school sports?

Use the following information for questions: The table below shows the opinions of 1447 respondents in the General Social Survey to the question "Do you favor or oppose the death penalty for persons convicted of murder?" The purpose of examining the data is to see if there is a gender difference in how people would respond to this question. -To test whether there is a relationship in the population between gender and support for the death penalty, the chi-square statistic = 20.9 and the p-value < 0.001. Are the results statistically significant or not statistically significant? State your conclusion.

Use the following information for questions: The table below shows the opinions of 1027 respondents in the General Social Survey to the question "Everything considered, would you say that in general, you approve or disapprove of wiretapping?" The purpose of examining the data is to see if there is a gender difference in how people would respond to this question. -Assuming the null hypothesis is true, calculate the expected number of women in the sample who would approve of wiretapping.

Use the following information for questions: In a survey of 1000 adults, respondents were asked about the expense of a college education and the relative necessity of financial assistance. The correspondents were classified as to whether they currently had a child in college or not (college status), and whether they thought the loan obligation for most college students was too high, about right, or too little (loan obligation opinion). The table below summarizes some of the survey results. Use these results to answer the following questions. -What percent of adults with no child in college surveyed think loan obligations are too high?

Use the following information for questions: The table below shows the number of Olympic medals won by the three countries with the most medals during the 2000 Olympics in Sydney, Australia. There were a total of 244 medals won by the three countries. -What percent of the medals won by China were silver?

Use the following information for questions: A researcher conducted a study on college students to see if there was a link between gender and how often they have cheated on an exam. She asked two questions on a survey: (1) What is your gender? Male ___ Female ___ (2) How many times have you cheated on an exam while in college? Never __ 1 or 2 times ___ 3 or more times ___ A two-way table of observed counts follows: Chi-Square = 5.33, DF = 2, P-Value = 0.0696 -The percentage of males who cheated 1 or 2 times was

Use the following information for questions: A researcher conducted a study on college students to see if there was a link between gender and how often they have cheated on an exam. She asked two questions on a survey: (1) What is your gender? Male ___ Female ___ (2) How many times have you cheated on an exam while in college? Never __ 1 or 2 times ___ 3 or more times ___ A two-way table of observed counts follows: -What percent of the students in the study cheated 1 or 2 times on an exam?

Use the following information for questions: The table below shows the opinions of 908 respondents in the General Social Survey to the question "Do you believe there is life after death?" -What percent of respondents in the sample believe in life after death?

Use the following information for questions: The table below shows the opinions of 908 respondents in the General Social Survey to the question "Do you believe there is life after death?" -What percent of females believe in life after death?

Use the following information for questions: The table below summarizes, by gender of respondent, the responses from 1,033 people to the question, "Do you smoke?" -What is the relative risk for women smoking compared to men smoking?

Use the following information for questions: The table shows the opinions of 953 respondents in the General Social Survey to the question "If your party nominated a woman for President, would you vote for her if she were qualified for the job?" -What percent of males would vote for a woman president?

Use the following information for questions: The table below shows the opinions of 908 respondents in the General Social Survey to the question "Do you believe there is life after death?"Life After Death? -What is the odds ratio for males versus females who believe in life after death?

Use the following information for questions: The table below shows the opinions of 908 respondents in the General Social Survey to the question "Do you believe there is life after death?"Life After Death? -What are the odds of believing in life after death for females?

Use the following information for questions: The table shows the opinions of 953 respondents in the General Social Survey to the question "If your party nominated a woman for President, would you vote for her if she were qualified for the job?" -What percent of respondents in the sample would vote for a woman president?