Posted by C on Wednesday, April 3, 2013 at 10:51am.
How would I find the confidence level (in %) if I am given the standard deviation, size of the random sample, and confidence interval?

Statistics  MathGuru, Wednesday, April 3, 2013 at 8:55pm
You would solve for the zvalue using the margin of error (derived from the confidence interval), standard deviation, and the sample size.
Margin of error = zvalue (sd/√n)
Once you have the zvalue, find the percentage using a ztable.
Answer This Question
Related Questions
 Math  How would I find the confidence level (in %) if I am given the standard ...
 Statistics  When consumers apply for credit, their credit is rated using the ...
 statistics  Help!!!!!! A confidence interval estimate for the population mean ...
 Statistics  We have calculated a 95% confidence interval for a proportion and ...
 Statistics  A random sample of 90 observations produced a mean that = 25.9 and...
 Statistics  Hoping to lure more shoppers downtown, a city builds a new parking ...
 Statistics  Find the margin of error for a 95% confidence interval for ...
 Statistics  Find the margin of error for a 95% confidence interval for ...
 Math Statistics  5. Students in an introductory statistics class were asked to ...
 Statistics  The standard deviation for a population is σ = 15.3. A sample ...
More Related Questions