difference bétw dry areas when treated with fire or not. Interpret your interval in context. pood trea 20.23 Treating AIDS. The drug AZT was the first drug that seemed effective in delaying the onset of AIDS in HIV-positive patients. Evidence for AZT's effectiveness came from a large randomized comparative experiment. The subjects were 1300 HIV-positive volunteers who had not yet developed AIDS. The study assigned 435 of the subjects at random to take 500 milligrams of AZT each day, and another 435 subjects to take a placebo. (The others were assigned to a higher dose of AZT, but we will compare only the first two groups.) At the end of the study, 38 of the placebo recipients and 17 of the AZT recipients had developed AIDS. We want to test the claim that taking AZT lowers the proportion of infected people who will develop AIDS in a given period of time. (a) State the hypotheses and check that you can safely use the z procedures. (a) hyp (b) (c` 20 b. (b) How significant is the evidence that AZT is effective? (c) The experiment was double-blind. Explain what this means. (Comment: Medical experiments on treatments for AIDS and other fatal diseases raise hard ethical questions. Some people argue that because AIDS is always fatal, infected people should get any drug that has any hope of helping them. The counter-argument is that then we will never find out which drugs really work. The placebo recipients in this study were given AZT as soon as the results indicated that AZT was clearly more effective.) 1.
difference bétw dry areas when treated with fire or not. Interpret your interval in context. pood trea 20.23 Treating AIDS. The drug AZT was the first drug that seemed effective in delaying the onset of AIDS in HIV-positive patients. Evidence for AZT's effectiveness came from a large randomized comparative experiment. The subjects were 1300 HIV-positive volunteers who had not yet developed AIDS. The study assigned 435 of the subjects at random to take 500 milligrams of AZT each day, and another 435 subjects to take a placebo. (The others were assigned to a higher dose of AZT, but we will compare only the first two groups.) At the end of the study, 38 of the placebo recipients and 17 of the AZT recipients had developed AIDS. We want to test the claim that taking AZT lowers the proportion of infected people who will develop AIDS in a given period of time. (a) State the hypotheses and check that you can safely use the z procedures. (a) hyp (b) (c` 20 b. (b) How significant is the evidence that AZT is effective? (c) The experiment was double-blind. Explain what this means. (Comment: Medical experiments on treatments for AIDS and other fatal diseases raise hard ethical questions. Some people argue that because AIDS is always fatal, infected people should get any drug that has any hope of helping them. The counter-argument is that then we will never find out which drugs really work. The placebo recipients in this study were given AZT as soon as the results indicated that AZT was clearly more effective.) 1.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Transcribed Image Text:difference bétw
dry areas when treated with fire or not. Interpret your
interval in context.
pood
trea
20.23 Treating AIDS. The drug AZT was the first drug
that seemed effective in delaying the onset of AIDS in
HIV-positive patients. Evidence for AZT's effectiveness
came from a large randomized comparative experiment.
The subjects were 1300 HIV-positive volunteers who had
not yet developed AIDS. The study assigned 435 of the
subjects at random to take 500 milligrams of AZT each
day, and another 435 subjects to take a placebo. (The
others were assigned to a higher dose of AZT, but we will
compare only the first two groups.) At the end of the
study, 38 of the placebo recipients and 17 of the AZT
recipients had developed AIDS. We want to test the claim
that taking AZT lowers the proportion of infected people
who will develop AIDS in a given period of time.
(a) State the hypotheses and check that you can safely use
the z procedures.
(a)
hyp
(b)
(c`
20
b.
(b) How significant is the evidence that AZT is effective?
(c) The experiment was double-blind. Explain what this
means.
(Comment: Medical experiments on treatments for AIDS
and other fatal diseases raise hard ethical questions. Some
people argue that because AIDS is always fatal, infected
people should get any drug that has any hope of helping
them. The counter-argument is that then we will never
find out which drugs really work. The placebo recipients in
this study were given AZT as soon as the results indicated
that AZT was clearly more effective.)
1.
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