What test would i run in excel? The data in Table 7–6 were collected in a clinical trial to evaluate a new compound designed to improve wound healing in trauma patients. The new compound was com- pared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of wound heal- ing was measured. Is there a difference in the extent of wound healing between the treatments? (Hint: Are treat- ment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. 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
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
What test would i run in excel?
The data in Table 7–6 were collected in a clinical trial to evaluate a new compound designed to improve wound healing in trauma patients. The new compound was com- pared against a placebo. After treatment for 5 days with
the new compound or placebo, the extent of wound heal- ing was measured. Is there a difference in the extent of wound healing between the treatments? (Hint: Are treat- ment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance.
| 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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