A random samplea 16 Google managers yield the following information on annual salaries. The sample meanis $89,000, with a sample standard deviationof $8,000.
What is the mean salary of all Google managers?
What is the 95% confidence intervalfor the population mean?
Confidence interval – mean
95% confidence level
8000 std. dev.
2.131 t (df = 15)
93262.899 upper confidence limit
84737.101 lower confidence limit.
The solution discusses a statistical analysis for mean salary of all Google managers.