Please explain how to solve the below question using excel.  1. 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 compared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of wound healing was measured. Is there a difference in the extent of wound healing between the treatments? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance. Use the data in Problem 1. Pool the data across the treatments 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% and a = 0.05 to run the appropriate test.   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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Please explain how to solve the below question using excel. 

1. 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 compared against a placebo. After treatment for 5 days with the new compound or placebo, the extent of wound healing was measured. Is there a difference in the extent of wound healing between the treatments? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance.

Use the data in Problem 1. Pool the data across the treatments 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% and a = 0.05 to run the appropriate test.

  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
Expert Solution
Step 1

Chi-Square test for independence:

Under the hypothesis:

Null Hypotheses: Treatment and percent wound healing are independent.

Alternative Hypotheses: Treatment and percent wound healing are not independent.

The test has to be performed using Excel.

Firstly, calculate the Expected frequencies by using the formula:

Ei=Row Total×Column TotalGrand Total

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