7.9 PRACTICE PROBLEMS 1. Data are collected in a clinical trial evaluating a new compound designed to improve wound healing in trauma patients. The new compound is compared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of wound heal ing is measured and the data are shown in Table 7-6. Is there a difference in the extent of wound healing by TABLE 7-6 Data for Practice Problems 1 and 2 Treatment New compound (n=125) Placebo (w=125) Percent Wound Healing 0-25 % 26-50% 51-75 % 76-100% 15 37 34 treatment? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. 41 10
7.9 PRACTICE PROBLEMS 1. Data are collected in a clinical trial evaluating a new compound designed to improve wound healing in trauma patients. The new compound is compared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of wound heal ing is measured and the data are shown in Table 7-6. Is there a difference in the extent of wound healing by TABLE 7-6 Data for Practice Problems 1 and 2 Treatment New compound (n=125) Placebo (w=125) Percent Wound Healing 0-25 % 26-50% 51-75 % 76-100% 15 37 34 treatment? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. 41 10
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:7.9 PRACTICE PROBLEMS
1. Data are collected in a clinical trial evaluating a new
compound designed to improve wound healing in
trauma patients. The new compound is compared
against a placebo. After treatment for 5 days with the
new compound or placebo, the extent of wound heal-
ing is measured and the data are shown in Table 7-6.
Is there a difference in the extent of wound healing by
TABLE 7-6 Data for Practice Problems 1 and 2
Treatment
New compound
(n=125)
Placebo
(n = 125)
Percent Wound Healing
0-25 % 26-50 % 51-75% 76-100%
15
36
37
45
32
H
41
10
treatment? (Hint: Are treatment and the percent
wound healing independent?) Run the appropriate
test at a 5% level of significance.
|
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