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    Statistics Analysis for Mean Salary of All Google Managers

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    A random sample a 16 Google managers 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 std. 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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    The solution discusses a statistical analysis for mean salary of all Google managers.