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A random sample a 16 Google mangers yield the following information on annual salaries. The sample mean is $89,000, with a sample standard deviation of $8,000. 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

89000 mean

8000 standard. dev.

16 n

2.131 t (df = 15)

4262.899 half-width

93262.899 upper confidence limit

84737.101 lower confidence limit

A random sample a 16 Google mangers yield the following information on annual salaries. The sample mean is $89,000, with a sample standard deviation of $8,000. 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

89000 mean

8000 standard. dev.

16 n

2.131 t (df = 15)

4262.899 half-width

93262.899 upper confidence limit

84737.101 lower confidence limit

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