Question
In: Statistics and Probability
(1 point) Suppose a group of 1000 smokers (who all wanted to give up smoking) were...
(1 point) Suppose a group of 1000 smokers (who all wanted to give up smoking) were randomly assigned to receive an antidepressant drug or a placebo for six weeks. Of the 184 patients who received the antidepressant drug, 39 were not smoking one year later. Of the 816 patients who received the placebo, 167 were not smoking one year later. Given the null hypothesis H0:(pdrug−pplacebo)=0 and the alternative hypothesis Ha:(pdrug−pplacebo)≠0, conduct a test to see if taking an antidepressant drug can help smokers stop smoking. Use α=0.01,
(a) The test statistic is ____
(b) The P-value is____
(c) The final conclusion is
A. There is not sufficient evidence to determine whether the antidepressant drug had an effect on changing smoking habits after one year.
B. There seems to be evidence that the patients taking the antidepressant drug have a different success rate of not smoking after one year than the placebo group.
Solutions
orchestra answered 1 year agoRelated Solutions
Suppose a group of 1000 smokers (who all wanted to give up smoking) were randomly assigned...
Suppose a group of 1000 smokers (who all wanted to give up
smoking) were randomly assigned to receive an antidepressant drug
or a placebo for six weeks. Of the 358 patients who received the
antidepressant drug, 174 were not smoking one year later. Of the
642 patients who received the placebo, 64 were not smoking one year
later. Given the null hypothesis
H0:(pdrug−pplacebo)=0H0:(pdrug−pplacebo)=0 and the alternative
hypothesis Ha:(pdrug−pplacebo)≠0Ha:(pdrug−pplacebo)≠0, conduct a
test to see if taking an antidepressant drug can help...
Suppose a group of 1000 smokers (who all wanted to give up smoking) were randomly assigned...
Suppose a group of 1000 smokers (who all wanted to give up
smoking) were randomly assigned to receive an antidepressant drug
or a placebo for six weeks. Of the 271 patients who received the
antidepressant drug, 65 were not smoking one year later. Of the 729
patients who received the placebo, 89 were not smoking one year
later. Given the null hypothesis H0:(pdrug−pplacebo)=0 and the
alternative hypothesis Ha:(pdrug−pplacebo)≠0, conduct a test to see
if taking an antidepressant drug can help...
Suppose a group of 1000 smokers (who all wanted to give up smoking) were randomly assigned...
Suppose a group of
1000 smokers (who all wanted to give up smoking) were randomly
assigned to receive an antidepressant drug or a placebo for six
weeks. Of the 120 patients who received the antidepressant drug, 32
were not smoking one year later. Of the 880 patients who received
the placebo, 50 were not smoking one year later. Given the null
hypothesis
H0:(pdrug−pplacebo)=0H0:(pdrug−pplacebo)=0
and the alternative hypothesis
Ha:(pdrug−pplacebo)≠0Ha:(pdrug−pplacebo)≠0,
conduct a test to see if taking an antidepressant drug can help...
(1 point) Suppose a group of 700 smokers (who all wanted to give up smoking) was...
(1 point) Suppose a group of 700 smokers (who all wanted to give
up smoking) was randomly assigned to receive an antidepressant drug
or a placebo for six weeks. Of the 141 patients who received the
antidepressant drug, 48 were not smoking one year later. Of the 559
patients who received the placebo, 157 were not smoking one year
later. Given the null hypothesis H0:(p drug−p placebo)=0 and the
alternative hypothesis Ha:(p drug−p placebo)≠0 conduct a test to
see if...
Suppose a group of 800 smokers (who all wanted to give up smoking) were randomly assigned...
Suppose a group of 800 smokers (who all wanted to give up
smoking) were randomly assigned to receive an antidepressant drug
or a placebo for six weeks. Of the 405 patients who received the
antidepressant drug, 39 were not smoking one year later. Of the 395
patients who received the placebo, 50 were not smoking one year
later. Given the null hypothesis H0:(pdrug−pplacebo)=0 and the
alternative hypothesis Ha:(pdrug−pplacebo)≠0, conduct a test to see
if taking an antidepressant drug can help...
Suppose a group of 800 smokers (who all wanted to give up smoking) were randomly assigned...
Suppose a group of 800 smokers (who all wanted to give up
smoking) were randomly assigned to receive an antidepressant drug
or a placebo for six weeks. Of the 220 patients who received the
antidepressant drug, 17 were not smoking one year later. Of the 580
patients who received the placebo, 271 were not smoking one year
later. Given the null hypothesis
?0:(?????−????????)=0H0:(pdrug−pplacebo)=0 and the alternative
hypothesis ??:(?????−????????)≠0Ha:(pdrug−pplacebo)≠0, conduct a
test to see if taking an antidepressant drug can help...
Suppose a group of 700 smokers (who all wanted to give up smoking) were randomly assigned...
Suppose a group of 700 smokers (who all wanted to give up
smoking) were randomly assigned to receive an antidepressant drug
or a placebo for six weeks. Of the 164 patients who received the
antidepressant drug, 41 were not smoking one year later. Of the 536
patients who received the placebo, 107 were not smoking one year
later. Given the null hypothesis
H0:(pdrug−pplacebo)=0
and the alternative hypothesis
Ha:(pdrug−pplacebo)≠0,
conduct a test to see if taking an antidepressant drug can help...
In one study of smokers who tried to quit smoking with nicotine patch therapy, 35 were...
In one study of smokers who tried to quit smoking with nicotine
patch therapy, 35 were smoking one year after treatment and 34
were not smoking one year after the treatment. Use a 0.10
significance level to test the claim that among smokers who try to
quit with nicotine patch therapy, the majority are smoking one
year after the treatment. Do these results suggest that the
nicotine patch therapy is noteffective?
The test statistic for this hypothesis test is _...
in one study of smokers who tried to quit smoking with nicotine patch therapy, 37 were...
in
one study of smokers who tried to quit smoking with nicotine patch
therapy, 37 were smoking one year after treatment and 33 were not
smoking one year after treatment. Use a .05 significance level to
test the claim that among smokers who try to quit with nicotine
oatch therapy, the majority are smoking one year after treatment.
Do these results suggest that patch therapy is not effective?
Suppose you were asked to give a presentation to a group of parents-to-be who are participating...
Suppose you were asked to give a presentation to a group of
parents-to-be who are participating in a prepared-childbirth class.
Your topic is “effective parenting” or, put another way, “how to
raise an energetic, friendly, cooperative, independent,
self-reliant child.” Based on the material presented on various
styles of parenting and child behaviour outcomes, what points would
you stress to these parents-to-be? Provide a rationale for each of
your choices.
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