University of Connecticut

Do you have an insatiable craving for chocolate or some other food? Since many North Americans apparently do, psychologists are designing scientific studies to examine the phenomenon, • In a survey of 1,000 McMaster University (Canada) students, 88% of the 600 women in the study acknowledged specific food cravings while only 71% of What is the p-value of the appropriate test of hypotheses if you want to demonstrate that the proportion of women acknowledging specific food cravings exceeds that of men? • a. 0 • b. 0.168 • c. 0.223 d. 0.503 • e. 1

In a survey of 240 randomly selected students at the University of California - Davis (UCD), 15 said that they were left-handed and 225 said they were right-handed. Find a 99% confidence interval for the proportion of left-handed students at UCD. • a. (0.031876, 0.093124) • b. (0.026151, 0.098849) c. (0.030410, 0.094590) • d. (0.022253, 0.102747) O e. (0.028592, 0.096408)

In a survey of 240 randomly selected students at the University of California - Davis (UCD), 15 said that they were left-handed and 225 said they were right-handed. Is the proportion of UCD students who are left-handed different from the national proportion of 0.11? • a. (a = 0.01) Yes • b. (a = 0.01) No • c. (a = 0.05) Yes • d. (a = 0.05) No • e. None of the above

In a survey of 240 randomly selected students at the University of Califoria - Davis (UCD); 15 said that they were left-handed and 225 said they were right-handed. We would like to know if the proportion of UCD students who are left-handed differs from the national proportion of 0.11. What is the value of the appropriate test statistic if you want to answer this question by carrying out a test of hypotheses? a. -2.33 b. -2.35 c. -2.38 d-2.39 E. 8.2.41

Do you have an insatiable craving for chocolate or some other food? Since many North Americans apparently do, psychologists are designing scientific studies to examine the phenomenon. In a survey of 1,000 McMaster University (Canada) students, 88% of the 600 women in the study acknowledged specific food cravings while only 71% of the men did. What is the p-value of the appropriate test of hypotheses if you want to demonstrate that the proportion of women acknowledging specific food cravings exceeds that of men? O a. 0 • b. 0.168 0 с. 0.223 • d. 0.503 0 e.1

Do you have an insatiable craving for chocolate or some other food? Since many North Americans apparently do, psychologists are designing scientific studies to examine the phenomenon. In a survey of 1,000 McMaster University (Canada) students, 88% of the 600 women in the study acknowledged specific food cravings while only 71% of the men did Find a 96% confidence interval for estimating how much higher the proportion of women acknowledging specific food cravings is. • a. (0.121, 0.219) • b. (0.116, 0.224) • c. (0.124, 0.216) • d. (0.108, 0.232) • e. (0.126, 0.214)