Find the 95% confidence interval for estimating the

Answered question

2022-05-19

Find the 95% confidence interval for estimating the population mean μ If sample mean X = 50, sample size n= 60 and population standard deviation σ is known to be 10.

Answer & Explanation

Jeffrey Jordon

Jeffrey Jordon

Expert2022-11-08Added 2605 answers

95% confidence interval is:

 

sample mean +/- z-critical * standard deviation/sqrt(sample size)

 

sample mean is given as 50, standard deviation given as 10 and sample size is given as 60

 

z-critical for 95% confidence interval is 1.96.

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