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    Elementary Statistics

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    1. Use a P- value to test the claim about the population mean μ using the given sample statistics. State your decision for α = 0.05
    Claim: μ ≠ 230; Sample statistics: x (bar) = 216.5, s = 17.3, n = 48

    = _
    2. If X =5.2, R =.3,and n=4, and if specifications are (4.6, 5.8), is the process capable? Show work.
    = _
    3. If X = 2.0144, R = .0972,and 25 subgroups of size 5,(show all work)
    _
    a. Find the UCL and the LCL for the X Chart.
    b. Find the UCL and the LCL for the R-Char

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    Solution Preview

    1. Use a P- value to test the claim about the population mean μ using the given sample statistics. State your decision for α = 0.05
    Claim: μ ≠ 230; Sample statistics: x (bar) = 216.5, s = 17.3, n = 48

    Data: n μ s x-bar
    48 230 17.3 216.5

    (1) Formulate ...

    Solution Summary

    The expert examines elementary statistics. A complete, neat and step-by-step solution is provided in the attached Excel file.

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