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In: Math
The table below summarizes baseline characteristics of patients participating in a clinical trial. a) Are there...
The table below summarizes baseline characteristics of patients participating in a clinical trial. a) Are there any statistically significant differences in baseline characteristics between treatment groups? Justify your answer.
b) Write the hypotheses and the test statistic used to compare ages between groups. (No calculations – just H0, H1 and form of the test statistic).
c) Write the hypotheses and the test statistic used to compare % females between groups. (No calculations – just H0, H1 and form of the test statistic).
d) Write the hypotheses and the test statistic used to compare % females between groups. (No calculations – just H0, H1 and form of the test statistic.) Characteristic Placebo (n = 125) Experimental ( n =125) P Mean (+ SD) Age 54 + 4.5 53 + 4.9 0.7856 % Female 39% 52% 0.0289 % Less than High School Education 24% 22% 0.0986 % Completing High School 37% 36% % Completing Some College 39% 42% Mean (+ SD) Systolic Blood Pressure 136 + 13.8 134 + 12.4 0.4736 Mean (+ SD) Total Cholesterol 214 + 24.9 210 + 23.1 0.8954 % Current Smokers 17% 15% 0.5741 % with Diabetes 8% 3% 0.0438
Solutions
milcah answered 11 months agoRelated Solutions
The table below summarizes baseline characteristics of patients participating in a clinical trial. a) Are there...
The table below summarizes baseline characteristics of patients
participating in a clinical trial. a) Are there any statistically
significant differences in baseline characteristics between
treatment groups? Justify your answer. Characteristic Placebo (n =
125) Experimental ( n =125) P Mean (+ Sd. Age 54 + 4.5 53 + 4.9
0.7856 % Female 39% 52% 0.0289 % Less than High School Education
24% 22% 0.0986 % Completing High School 37% 36% % Completing Some
College 39% 42% Mean (+ Sd. Systolic...
The table below summarizes baseline characteristics of patients participating in a clinical trial. a) Are there...
The table below summarizes baseline characteristics of patients
participating in a clinical trial. a) Are there any statistically
significant differences in baseline characteristics between
treatment groups? Justify your answer.
Characteristic
Placebo (n = 125)
Experimental ( n =125)
P
Mean (+ SD) Age
54 + 4.5
53 + 4.9
0.7856
% Female
39%
52%
0.0289
% Less than High School Education
24%
22%
0.0986
% Completing High School
37%
36%
% Completing Some College
39%
42%
Mean (+ SD) Systolic...
Use the data in the accompanying table that summarizes results from a clinical trial of a...
Use the data in the
accompanying table that summarizes results from a clinical trial of
a drug. Let A = Drug Treatment, B = Placebo
headache
No Headache
total
Drug Treatment (A)
122
585
707
Placebo ( B)
28
672
700
Total
150
1257
1407
Answer the
following:
1. Find the
probability that patient under treatment p(A)
2. Find p(B)
3. Find the
probability a patient has a headache
4. Find the
probability a patient has a headache and he...
Clinical trial (a) There are several methods to assign treatments to patients in comparative clinical trials....
Clinical trial
(a) There are several methods to assign treatments to patients
in comparative clinical trials. Commonly used methods include pure
randomization ,permutted blocks and within strata.
Briefly describe each of these technique for which the
institution ,the sex,and age of the patient (under 50 years of age
versus over 50 years of age) are factors that could be taken into
account at the time of randomization.
3. The following frequency table summarizes the distances in miles of 120 patients from a regional...
3. The following frequency table summarizes the distances in
miles of 120 patients from a regional hospital. Distance Frequency
0-4 40 4-8 30 8-12 20 12-16 20 16-20 10 Calculate the sample
variance and standard deviation for this data (since it is a case
of grouped data- use group or class midpoints in the formula in
place of X values, and first calculate the sample mean).
The following frequency table summarizes the distances in miles of 100 patients from a regional hospital....
The following frequency table summarizes the distances in miles
of 100 patients from a regional hospital.
Distance Frequency
0-4 20
4-8 25
4-12 30
12-16 20
16-24 5
Calculate the sample variance and standard deviation for this
data (since it is a case of grouped data- use group or class
midpoints in the formula in place of X values, and first calculate
the sample mean)
Below is a table that summarizes the net income of the Kouza Company for the current...
Below is a table that summarizes the net income of the Kouza
Company for the current year. (You see total net income
company-wide and to the right you see the income of each
department.)
Kouza has 4 departments in its facility. The fixed manufacturing
cost is rent on the facility. The fixed selling and adminstrative
cost is the salary of the sales manager for the company.
Total
Dept.
A
Dept.
B
Dept.
C
Dept.
D
Sales
1,475,000
300,000
...
In a clinical trial, 50 patients who received a new medication are randomly selected. It was...
In a clinical trial, 50 patients who received a new medication
are randomly selected. It was found that 10 of them suffered
serious side effects from this new medication. let p denote the
population proportion of patients suffered serious side effects
from this new medication. The 90% confidence interval for p is
about
Patients in a clinical trial for a new cancer treatment are classified as permanently cured, in remission
Patients in a clinical trial for a new cancer treatment are classified as permanently cured, in remission (the cancer is present, but not growing), sick (the cancer is growing), or deceased. After one year of treatment, 1/3 of sick patients go into remission, another 1/3 are permanently cured, and, unfortunately, 1/3 are deceased. Patients in remission also receive treatment after a year of which 1/4 remain in remission, 1/2 are permanently cured, and 1/4 decline to the sick condition (a) Formulate...
In a clinical trial, 50 patients who received a new medication are randomly selected. It was...
In a clinical trial, 50 patients who received a new medication
are randomly selected. It was found that 10 of them suffered
serious side effects from this new medication. Let p denote the
population proportion of patients suffered serious side effects
from this new medication.
Find the minimum sample size needed to estimate the population
proportion p with 90% confidence such that the estimate is accurate
within 0.04 of p.
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