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Mathematics, 25.04.2020 02:59 applesass
The thickness of metal wires used in the manufacture of silicon wafers is assumed to be normallydistributed with meanμ. To monitor the production process, the thickness of 40 wires is taken. Theoutput is considered unacceptable if the mean differs from the target value of 10. The 40 measurementsyield a sample mean of 10.2 and sample standard deviation of 1.2. Conduct the appropriate hypothesistest with a significance level ofα= 0.05.
(a) State the Null hypothesis.
(b) State the Alternative Hypothesis.
(c) Give the formula for the test statistic and the reference distribution.
(d) Calculate the test statistic.
(e) Calculate the p-value.
(f) What implication does this test have for the production process?
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