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Recall from Activities 15-1 and 16-6 the study in which a sample of 124 kissing couples were observed, with 80 of them leaning their heads to the right. a. Use these sample data to test whether or not more than half of the population of kissing couples lean their heads to the right. Report the hypotheses, test statistic, and p-value. Summarize your conclusion at the \alpha .01 significance level, and explain how your conclusion follows from your test. b. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right is less than three-fourths. c. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right differs from two-thirds.

Recall from Activities 15-1 and 16-6 the study in which a sample of 124 kissing couples were observed, with 80 of them leaning their heads to the right. a. Use these sample data to test whether or not more than half of the population of kissing couples lean their heads to the right. Report the hypotheses, test statistic, and p-value. Summarize your conclusion at the \alpha .01 significance level, and explain how your conclusion follows from your test. b. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right is less than three-fourths. c. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right differs from two-thirds.

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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Recall from Activities 15-1 and 16-6 the study in which a sample of 124 kissing couples were observed, with 80 of them leaning their heads to the right. a. Use these sample data to test whether or not more than half of the population of kissing couples lean their heads to the right. Report the hypotheses, test statistic, and p-value. Summarize your conclusion at the \alpha .01 significance level, and explain how your conclusion follows from your test. b. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right is less than three-fourths. c. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right differs from two-thirds.
Transcribed Image Text:Recall from Activities 15-1 and 16-6 the study in which a sample of 124 kissing couples were observed, with 80 of them leaning their heads to the right. a. Use these sample data to test whether or not more than half of the population of kissing couples lean their heads to the right. Report the hypotheses, test statistic, and p-value. Summarize your conclusion at the \alpha .01 significance level, and explain how your conclusion follows from your test. b. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right is less than three-fourths. c. Repeat part a, testing whether or not the population proportion of kissing couples who lean to the right differs from two-thirds.
As reported in the journal Nature (2003), German biopsychologist Onur Güntürkün conjectured that the human tendency to turn to the right manifests itself in other ways well, so he studied kissing couples to see if they tended to lean their heads to the right while kissing. He and his researchers observed couples from age 13 to 70 in public places such as airports, train stations, beaches, and parks in the United States, Germany, and Turkey. They were careful not to include couples who were holding objects such as luggage that might have affected which direction couples leaned. They observed a total of 124 kissing couples.
Transcribed Image Text:As reported in the journal Nature (2003), German biopsychologist Onur Güntürkün conjectured that the human tendency to turn to the right manifests itself in other ways well, so he studied kissing couples to see if they tended to lean their heads to the right while kissing. He and his researchers observed couples from age 13 to 70 in public places such as airports, train stations, beaches, and parks in the United States, Germany, and Turkey. They were careful not to include couples who were holding objects such as luggage that might have affected which direction couples leaned. They observed a total of 124 kissing couples.
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