Use the following information to answer the next two exercises. A new AIDS prevention drug was tried on a group of 224HIV positive patients. Forty-five patients developed AIDS after four years. In a control group of 224 HIV positive patients,68 developed AIDS after four years. We want to test whether the method of treatment reduces the proportion of patients thatdevelop AIDS after four years or if the proportions of the treated group and the untreated group stay the same.Using HA: P₁ P2 <0 as the alternative hypothesis, an alpha level ofP10.01, and the p-value you found in the previous problem, form aα -conclusion.If the drug made no difference, there was only a 1.6% chance of finding thesample proportions we did. While this is very unlikely, the high medicalstandards when working with humans generally requires less than 1%, so theevidence was not statistically significant enough to determine that the drugworks.If the drug made no difference, there was only a 0.8% chance of finding thesample proportions we did. The drug is probably effective.If the drug made no difference, there was only a 1.2% chance of finding thesample proportions we did. While this is very unlikely, the high medicalstandards when working with humans generally requires less than 1%, so theevidence was not statistically significant enough to determine that the drugworks.If the drug made no difference, there was only a 0.6% chance of finding thesample proportions we did. The drug is probably effective.

The given informations are:The significance level,

Answered: Use the following information to answer…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Español Among college students, the proportion p who say they're interested in their congressional district's election results has traditionally been 65%. After a series of debates on campuses, a political scientist daims that the proportion of college students who say they're interested in their district's election results is more than 65%. A poll is commissioned, and 173 out of a random sample of 260 college students say they're interested in their district's election results. Is there enough evidence to support the political scientist's claim at the 0.05 level of significance? Perform a one-tailed test. Then complete the parts below. Carry your intermediate computations to three or more decimal places. (If necessary, consult a list of formulas.) (a) State the null hypothesis H, and the alternative hypothesis H1. H, :0 H :0 (b) Determine the type of test statistic to use. (Choose one) D=0 OSO (c) Find the value of the test statistic. (Round to three or more decimal places.) ロ=ロ O
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