Calculate confidence interval-sample standard deviation

Reference no: EM13133478

An experiment involves selecting a random sample of 256 middle managers for study. One item of interest is annual income. The sample mean is computed to be $35,420 and the sample standard deviation is $2,050. Using this information, calculate the 95% confidence interval (rounded to the nearest $10). Interpret your findings.

Reference no: EM13133478

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