MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Please answer question 2 which is related to question 1 using excel formula input only. Please show steps to solve using EXCEL only. Thank you very much!!
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 Percent Wound Healing Treatment 0-25% 26-50% 51-75% 76-100% New compound (n = 125) 15 37 32 41 Placebo (n = 125) 36 45 34 10
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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 Percent Wound Healing Treatment 0-25% 26-50% 51-75% 76-100% New compound (n = 125) 15 37 32 41 Placebo (n = 125) 36 45 34 10
treatment? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. 2. Use the data in Problem 1 and pool the data across the treatménts into one sample of size n = 250. Use the pooled data to test whether the distribution of the percent wound healing is approximately normal. Specifically, use the following distribution: 30%, 40%, 20%, and 10%. Run the appropriate test at a = 0.05. 3. The data in Table 7–7 are collected in an experiment designed to investigate the impact of different posi- tions of the mother during ultrasound on fetal heart %3D
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Transcribed Image Text:treatment? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. 2. Use the data in Problem 1 and pool the data across the treatménts into one sample of size n = 250. Use the pooled data to test whether the distribution of the percent wound healing is approximately normal. Specifically, use the following distribution: 30%, 40%, 20%, and 10%. Run the appropriate test at a = 0.05. 3. The data in Table 7–7 are collected in an experiment designed to investigate the impact of different posi- tions of the mother during ultrasound on fetal heart %3D
Expert Solution
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Step 1

Null Hypothesis:

H0: The distribution of the percent wound healing is not approximately normal.

Alternative Hypothesis:

H1: The distribution of the percent wound healing is  approximately normal.

Given information, pool the data across the treatments into one sample.

Treatments 15+36=51 37+45=82 32+34=66 41+10=51

 

Given proportions are 30%, 40%, 20% and 10%.

 

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