Exam 3: Relationships Between Categorical Variablescontingency Tables

A large national retailer of electronics conducted a survey to determine consumer preferences For various brands of digital cameras and the data are summarized in the table shown below. Female Male Total Cannon Power Shot 73 59 Nikon Cool Pix 49 47 Sony Cyber Shot 58 33 Panasonic Lumix 35 30 Fujifilm Finepix 45 28 Olympus S/V 37 41 Other Brands 86 67 Total The percentage of consumers who are male and prefer Fujifilm is

A regional survey was carried out to gauge public opinion on the controversial Arizona Immigration Law (results shown below).Of respondents who are Democrat, what percent Oppose the law? Response Democrat Republican Independent Favor 50 93 35 Oppose 85 45 60 Don't Know 5 7 20

A company interested in the health of its employees started a health program including Monitoring blood pressure.Based on age, employees were categorized according to ranges of Blood pressure by age intervals.Data are shown in the table below. $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\text { Age }$ BP Under 30 - Over Total Low 27 38 31 96 Normal 48 90 92 230 High 23 59 72 154 Total 98 187 195 480 Of all employees, the percentage of those under 50 years old is

A company interested in the health of its employees started a health program including Monitoring blood pressure.Based on age, employees were categorized according to ranges of Blood pressure by age intervals.Data are shown in the table below. $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\text { Age }$ BP Under 30 - Over 50 Total Low 27 38 31 96 Normal 48 90 92 230 High 23 59 72 154 Total 98 187 195 480 The percentage of employees who are over age 50 and have high blood pressure is

Has the percentage of young girls drinking milk changed over time? The following table is consistent with the results from "Beverage Choices of Young Females: Changes and Impact on Nutrient Intakes" (Shanthy A. Bowman, Journal of the American Dietetic Association, 102(9), pp. 1234-1239): -Do you think that milk consumption by young girls is independent of the nationwide survey year? Use statistics to justify your reasoning.

Here is a stacked bar chart for data collected about employee blood pressure. This chart shows

Has the percentage of young girls drinking milk changed over time? The following table is consistent with the results from "Beverage Choices of Young Females: Changes and Impact on Nutrient Intakes" (Shanthy A. Bowman, Journal of the American Dietetic Association, 102(9), pp. 1234-1239): -Consider the following pie charts of a subset of the data above: Do the pie charts above indicate that milk consumption by young girls is independent of the nationwide survey year? Explain.

A company interested in the health of its employees started a health program including Monitoring blood pressure.Based on age, employees were categorized according to ranges of Blood pressure by age intervals.Data are shown in the table below. $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\quad$ $\text { Age }$ BP Under 30 - Over Total Low 27 38 31 96 Normal 48 90 92 230 High 23 59 72 154 Total 98 187 195 480 The percentage of employees with normal or low blood pressure is

To determine if people's preference in dogs had changed in the recent years, organizers of a local dog show asked people who attended the show to indicate which breed was their favorite. This information was compiled by dog breed and gender of the people who responded. The table summarizes the responses. -Write a sentence or two about the conditional relative frequency distribution of the breeds among female respondents.