215    285 500    b.  Use the study results to complete the following.  Round your answer to the nearest tenth of a percent, as needed.  Notice the percent sign is already included, so you just need to type the number.  What percent of the adults in this study were given the new allergy medicine?  % What percent of those who experienced improvements received the allergy medicine?   %  What percent of those who received the allergy medicine experienced improvements?   %  What percent of those who did not received the allergy medicine experienced improvements

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Researchers wanted to know the effectiveness of a new allergy medicine.  A study was conducted on 500 adults who experience allergy symptoms.  Each adult was randomly assigned to receive the new allergy medicine or a placebo.  Researchers recorded whether or not their symptoms improved within 1 week.

a.   Complete the two-way table summarizing the findings.

  Allergy Medicine Placebo Total

Symptoms Improved

 85 80  
Symptoms Did
Not Improve
       
Total

215    285 500 

 

b.  Use the study results to complete the following.  Round your answer to the nearest tenth of a percent, as needed. 
Notice the percent sign is already included, so you just need to type the number. 

What percent of the adults in this study were given the new allergy medicine?  %

What percent of those who experienced improvements received the allergy medicine?   % 

What percent of those who received the allergy medicine experienced improvements?   % 

What percent of those who did not received the allergy medicine experienced improvements?   % 

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