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4 Harris Interactive asked samples of adults (age 18 and over) in various countries, "How important are brand names to you, if at all, when purchasing clothes and fashion accessories?" The responses are given in the table below, as a percent. Very Important Important Not That Important Not At All Important Column Total Sample Size U.S. China India Britain France 4 19 23 7 3 21/ 53 51 17 22 48 24 21 41 49 27 4 5 35 26 100% 100% 100% 100% 100% 2,309 500 1,293 1,179 4 Source: www.harrisinteractive.com a. Name two countries for which the difference in the percentages between those countries clearly is statistically significant. Explain your reasoning. b. Name two countries where you think that the difference in the percentages probably will not be statistically significant. c. For the countries you chose in Part b, convert each percentage to a frequency. Round to the nearest whole number. d. For the two countries you chose in Part b, compute x². e. How many categories are there for each sample? f. What critical value should be used for comparison? g. Write a conclusion. Germany Spain Italy 3 2 2 19 26 26 49 50 51 29 22 21 100% 100% 100% 1,058 1,019 1,064 PRADA

4 Harris Interactive asked samples of adults (age 18 and over) in various countries, "How important are brand names to you, if at all, when purchasing clothes and fashion accessories?" The responses are given in the table below, as a percent. Very Important Important Not That Important Not At All Important Column Total Sample Size U.S. China India Britain France 4 19 23 7 3 21/ 53 51 17 22 48 24 21 41 49 27 4 5 35 26 100% 100% 100% 100% 100% 2,309 500 1,293 1,179 4 Source: www.harrisinteractive.com a. Name two countries for which the difference in the percentages between those countries clearly is statistically significant. Explain your reasoning. b. Name two countries where you think that the difference in the percentages probably will not be statistically significant. c. For the countries you chose in Part b, convert each percentage to a frequency. Round to the nearest whole number. d. For the two countries you chose in Part b, compute x². e. How many categories are there for each sample? f. What critical value should be used for comparison? g. Write a conclusion. Germany Spain Italy 3 2 2 19 26 26 49 50 51 29 22 21 100% 100% 100% 1,058 1,019 1,064 PRADA

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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4 Harris Interactive asked samples of adults (age 18 and over) in various countries, "How important are brand names to you, if at all, when purchasing clothes and fashion accessories?" The responses are given in the table below, as a percent. Very Important Important Not That Important Not At All Important Column Total Sample Size U.S. China 4 19 21/ 48 27 100% 2,309 500 India Britain France 23 7 3 53 51 24 21 4 5 100% 100% 500 4 b. Name two countries where you think that the difference in the percentages probably will not be statistically significant. Source: www.harrisinteractive.com a. Name two countries for which the difference in the percentages between those countries clearly is statistically significant. Explain your reasoning. c. For the countries you chose in Part b, convert each percentage to a frequency. Round to the nearest whole number. d. For the two countries you chose in Part b, compute x². comparison? g. Write a conclusion. e. How many categories are there for each sample? f. What critical value should be used for Germany Spain Italy 3 2 2 26 26 50 51 22 21 100% 100% 1,019 1,064 17 22 19 41 49 49 35 26 29 100% 100% 100% 1,293 1,179 1,058 PRADA
Transcribed Image Text:4 Harris Interactive asked samples of adults (age 18 and over) in various countries, "How important are brand names to you, if at all, when purchasing clothes and fashion accessories?" The responses are given in the table below, as a percent. Very Important Important Not That Important Not At All Important Column Total Sample Size U.S. China 4 19 21/ 48 27 100% 2,309 500 India Britain France 23 7 3 53 51 24 21 4 5 100% 100% 500 4 b. Name two countries where you think that the difference in the percentages probably will not be statistically significant. Source: www.harrisinteractive.com a. Name two countries for which the difference in the percentages between those countries clearly is statistically significant. Explain your reasoning. c. For the countries you chose in Part b, convert each percentage to a frequency. Round to the nearest whole number. d. For the two countries you chose in Part b, compute x². comparison? g. Write a conclusion. e. How many categories are there for each sample? f. What critical value should be used for Germany Spain Italy 3 2 2 26 26 50 51 22 21 100% 100% 1,019 1,064 17 22 19 41 49 49 35 26 29 100% 100% 100% 1,293 1,179 1,058 PRADA
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