The mean annual salary of a sample of 325 office managers is $$55, 280$ with a standard deviation of $$9, 460$ . Calculate the margin of error and construct the $98%$ confidence interval for the true population mean annual salary for office managers. We may assume that the sample standard deviation s is an accurate approximation of the population standard deviation $σ$ (i.e., $s \approx σ$ ), given that the sample size is so large $(n > 200$ ). $E =$ Round to the nearest dollar Round to the nearest dollar

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The mean annual salary of a sample of 325 office managers is

$55, 280

with a standard deviation of

$9, 460

. Calculate the margin of error and construct the

98%

confidence interval for the true population mean annual salary for office managers. We may assume that the sample standard deviation s is an accurate approximation of the population standard deviation

σ

(i.e.,

s \approx σ

), given that the sample size is so large

(n > 200

).

E =

Round to the nearest dollar Round to the nearest dollar

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