SOLUTION: A confidence interval for a population mean has length 24. a) Determine the margin of error. b) If the sample mean is 65, obtain the confidence interval. Confidence interv

Algebra ->  Permutations -> SOLUTION: A confidence interval for a population mean has length 24. a) Determine the margin of error. b) If the sample mean is 65, obtain the confidence interval. Confidence interv      Log On


   

Question 1197600: A confidence interval for a population mean has length 24.
a) Determine the margin of error.

b) If the sample mean is 65, obtain the confidence interval.
Confidence interval: ( , ).
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

Hi 

A confidence interval for a population mean has length 24. 
 ME = 24/2 = 12

x̄ = 65
65 - 12 < mu < 65 + 12
CI( 53, 77)

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