Question

A study of identity theft looked at how well consumers protect themselves from this increasingly prevalent crime. The behaviors of 61 college students were compared with the behaviors of 59 nonstudents. One of the questions was "When asked to create a password, I have used either my mother's maiden name, or my pet's name, or my birth date, or the last four digits of my social security number, or a series of consecutive numbers." For the students, 24 agreed with this statement while 29 of the nonstudents agreed. (a) Display the data in a two-way table. Students Nonstudents Total Agreed 24 Correct: Your answer is correct. 29 Correct: Your answer is correct. 53 Correct: Your answer is correct. Disagreed 37 Correct: Your answer is correct. 30 Correct: Your answer is correct. 67 Correct: Your answer is correct. Total 61 Correct: Your answer is correct. 59 Correct: Your answer is correct. 120 Perform the chi-square test. (Round your χ2 to three decimal places and round your P-value to four decimal places.) χ2 = 2.221 Incorrect: Your answer is incorrect. df = 1 Correct: Your answer is correct. P-value = 0.1362 Incorrect: Your answer is incorrect. Summarize the results. We cannot conclude at the 5% level that students and nonstudents differ in the response to this question. We can conclude at the 5% level that students and nonstudents differ in the response to this question. Correct: Your answer is correct. (b) Reanalyze the data using the methods for comparing two proportions that we studied in the previous chapter. Compare the results and verify that the chi-square statistic is the square of the z statistic. (Test students who agreed minus nonstudents who agreed. Round your z to two decimal places and round your P-value to four decimal places.) z = 1.49 Incorrect: Your answer is incorrect. P-value = 0.1362 Incorrect: Your answer is incorrect. (c) The students in this study were junior and senior college students from two sections of a course in Internet marketing at a large northeastern university. The nonstudents were a group of individuals who were recruited to attend commercial focus groups on the West Coast conducted by a lifestyle marketing organization. Discuss how the method of selecting the subjects in this study relates to the conclusions that can be drawn from it.

	Students		Nonstudents		Total
Agreed	24		29		53
Disagreed	37		30		67
Total	61		59		120

Answer 1

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