Surgical complications: A medical researcher wants to construct a 99.8% confidence interval for the proportion of knee replacement surgeries that result in complications. Part: 0 / 2 0 of 2 Parts Complete Part 1 of 2 (a) An article in a medical journal suggested that approximately 15% of such operations result in complications. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 0.03 ? A sample of operations is needed to obtain a 99.8% confidence interval with a margin of error of 0.03 using the estimate 0.15 for p

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Surgical complications: A medical researcher wants to construct a 

99.8%

 confidence interval for the proportion of knee replacement surgeries that result in complications.

 

Part: 0 / 2
0 of 2 Parts Complete
 
Part 1 of 2
 
 

(a) An article in a medical journal suggested that approximately 

15%

 of such operations result in complications. Using this estimate, what sample size is needed so that the confidence interval will have a margin of error of 

0.03

?

A sample of 
 
 operations is needed to obtain a 
99.8%
 confidence interval with a margin of error of 
0.03
 using the estimate 
0.15
 for 
p
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