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A 2003 study reported in the Journal of Consumer Affairs examined how well consumers protect themselves from identity theft. The study surveyed a random sample
A 2003 study reported in the Journal of Consumer Affairs examined how well consumers protect themselves from identity theft. The study surveyed a random sample of 61 college students and 59 non-students, and asked each participant, "Have you used personal information (such as birth date, pet name, etc.) when creating a password?" For the students, 22 agreed with this statement, while 30 of the non-students agreed. If we increased the confidence level from 95% to 99%, all else remaining the same, the center of the confidence interval would increase. O decrease. O remain the same.A 2003 study reported in the Journal of Consumer Affairs examined how well consumers protect themselves from identity theft. The study surveyed a random sample of 61 college students and 59 non-students, and asked each participant, "Have you used personal information (such as birth date, pet name, etc.) when creating a password?" For the students, 22 agreed with this statement, while 30 of the non-students agreed. Use the Theory-Based Inference applet to find the p-value for a test of test Ho: Astudent - "non-student = 0 versus Ha: "student - Fnon-student * 0. O p-value = 0.0512 Op-value = 0.1023 p-value = 0.1480 O p-value = 0.9488(a) Of the 50 births, 29 were term and 21 were preterm; 41 were Caesarean deliveries and the other 9 were vaginal. Using this information, do you have enough information to complete this table? If so, fill in the table; if not, what other information do you need? Preterm Term Total Caesarean Vaginal Total We need one of the cell counts, for example, how many births overall. We need one of the cell counts, for example, how many Preterm births. We need one of the cell counts, for example, how many Caesarean births. We need one of the cell counts, for example, how many Preterm and Caesarean.Hepatitis C is a blood-born viral infection that causes liver inflammation and infection that, over time, can lead to liver disease. There is no vaccine against this strain of hepatitis, so preventive measures are the only management techniques. One of the ways hepatitis can be transmitted is by use of improperly sterilized tattoo equipment or contaminated dyes, which in turn has led to more stringent sterilization requirements for commercial tattoo parlors. Researchers at the University of Texas Southwestern Medical Center examined the medical records of 113 patients who had a tattoo to see whether these sterilization requirements at commercial parlors are reducing the proportion of hepatitis C among those with tattoos, compared to those who get tattoos elsewhere. Data are summarized in the following table. Commercial parlor Elsewhere Total Has Hep-C 10 15 25 Does not have Hep-C 60 28 88 Total 70 43 113 Use the Theory-Based Inference applet to find the p-value for a hypothesis test Ho: "commercial - elsewhere = 0 versus Ha: "commercial - Telsewhere
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