Question Help A study conducted in Uganda and Kenya looked at heterosexual couples in which one of the partners was HIV-positive and the other was not. The person in each couple who was not HIV-positive was randomly assigned to one of three study regimens: tenofovir (TDF), combination tenofovir-emtricitabine (TDF-FTC), or placebo and was followed for up to 36 months. Fifteen of the 1415 people assigned to TDF became positive for HIV, as did 12 of the 1463 assigned to TDF-FTC and 52 of the 1615 assigned to the placebo. Complete parts (a) through (c) below. H: Treatment and HIV status have non-equal proportions. O D. Ho: Treatment and HIV status are independent. H Treatment and HIV status are associated. Calculate the chi-square test statistic. x² = Round to two decimal places as needed.) Determine the p-value. p-value = (Round to three decimal places as needed.) What is the conclusion for this test? O A. Reject Ho and conclude that the treatment and HIV status are not associated. of O B. Reject Ho and conclude that the treatment and HIV status are associated. O C. Fail to reject Ho and conclude that the treatment and HIV status are associated. O D. Fail to reject Ho and conclude that the treatment and HIV status are not associated. Click to select your answer(s).
Question Help A study conducted in Uganda and Kenya looked at heterosexual couples in which one of the partners was HIV-positive and the other was not. The person in each couple who was not HIV-positive was randomly assigned to one of three study regimens: tenofovir (TDF), combination tenofovir-emtricitabine (TDF-FTC), or placebo and was followed for up to 36 months. Fifteen of the 1415 people assigned to TDF became positive for HIV, as did 12 of the 1463 assigned to TDF-FTC and 52 of the 1615 assigned to the placebo. Complete parts (a) through (c) below. H: Treatment and HIV status have non-equal proportions. O D. Ho: Treatment and HIV status are independent. H Treatment and HIV status are associated. Calculate the chi-square test statistic. x² = Round to two decimal places as needed.) Determine the p-value. p-value = (Round to three decimal places as needed.) What is the conclusion for this test? O A. Reject Ho and conclude that the treatment and HIV status are not associated. of O B. Reject Ho and conclude that the treatment and HIV status are associated. O C. Fail to reject Ho and conclude that the treatment and HIV status are associated. O D. Fail to reject Ho and conclude that the treatment and HIV status are not associated. Click to select your answer(s).
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Concept explainers
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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