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[answered] A clinical trial is conducted to investigate the effectiven


A clinical trial is conducted to investigate the effectiveness of an experimental drug in reducing preterm delivery to a drug considered standard care and to placebo.? Pregnant women are enrolled and randomly assigned to receive either the experimental drug, the standard drug or placebo.? Women are followed through delivery and classified as delivering preterm (<37 weeks) or not.? The data are shown below.


Is there a statistically significant difference in the?proportions?of women delivering preterm among the three treatment groups?? Apply the test at a 5% level of significance.


1. df:

2. Critical Value:

3. Computed t Value:

4. Based on comparing the computed Chi Square value with the critical value for Chi Square which of the following is (are) true?

A. There IS statistically significant difference in the?proportions?of women delivering preterm among the three treatment groups.

B. There is NOT statistically significant difference in the?proportions?of women delivering preterm among the three treatment groups.

C. The?proportions?are statistically the same.

D. A & C.



Preterm delivery|||||||????????????? |||||||Experimental drug|||||||||????????||||||||Standard drug |||||???????????? |||||| Placebo

Yes????????????????????????????????????????????????????????? 17??????????????????????????????????????????????????????????? 23????????????????????????????????????????????? 35

No????????????????????????????????????????????????????????????83?????????????????????????????????????????????????????????? 77????????????????????????????????????????????? 65


PLEASE STATE #2 AND #3.... THOSE ARE THE ONLY TWO I NEED THE ANSWERS TO


2. Critical value = 5.9915

 

3.

 

Results

 

experimental

 

drug standard drus placebo Row Totals Yes 17 (25.00) [2.56 23 (25.00) [0.16 35 (25.00) [4.00 75 No 83 (75.00) [0.85 77 (75.00) [0.05 65 (75.00)...

 


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