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.
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3. If X = 2.0144, R = .0972,and 25 subgroups of size 5,(show all work)
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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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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 ...
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