Mathematics
Mathematics, 07.11.2019 18:31, terrieldixon

The following table describes a randomized trial comparing an
experimental...

The following table describes a randomized trial comparing an
experimental medication to a placebo for treatment of reflux.
experimental treatment
(1 = 100)
placebo
(n = 100)
p
patient characteristics
52 (5.6)
63%
13 (3.2)
$42 (s4.5)
54 (5.2) 0.0090
58% 0.4563
10 (2.1) 0.0453
539 ($5.6) 0.0918
mcan (sd) age (years)
gender: % female
mean (sd) educational level (years)
mean (sd) annual income ($000s)
clinical characteristics
mean (sd) number of episodes
per week
severity of symptoms: % minimal
% moderate
% severe
8 (3.2)
6 (2.9)
0.0001
0.0021
21%
45%
15%
21%
64%
24%
a. provide a 95% confidence interval for true mean number of episodes of reflux per week for persons who will
receive the experimental treatment?
b. what is an estimate of the standard error of the mean age for the experimental treatment group?
c. what is an estimate of the standard error for the sample proportion of females in the experimental treatment
group?


The following table describes a randomized trial comparing an experimental medication to a pla

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The following table describes a randomized trial comparing an
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