Confidence interval-mean salary of google managers

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Reference no: EM13105264

A random sample a 16 Google managers yield the following information on annual salaries. The sample mean is $69,000, with a sample standard deviation of $4,000. What is the mean salary of all Google managers? What is the 95% confidence interval for the population mean?

Confidence interval - mean

95% confidence level

69000 mean

4000 std. dev.

16 n

2.131 t (df = 15)

2131.450 half-width

71131.450 upper confidence limit

66868.550 lower confidence limit

Reference no: EM13105264

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