Lecture_10_31

Lecture_10_31 - Lecture of Oct 31 No class on Nov 7,...

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1 Lecture of Oct 31 Lecture of Oct 31 No class on Nov 7, Tuesday. HW#7 due today. HW#8 assigned today but due on Nov 9, Thursday . HW#9 will be assigned late this week, due on Nov 14, Tuesday.
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2 Example 4.3 Example 4.3 An x-bar control chart with the 3-sigma control limits and sample size of 5 is used for monitoring a process mean shift. In order to enhance detection sensitivity, a 2-sigma limit is also used as the warning limit . Decision of when a chart should signal is based on m = 3 successive samples using either one of the following rules: Rule 1: If at least one of the three sample means falls outside the 3- sigma control limits, the chart signals; Rule 2: If exactly two out of the three sample means fall outside the 2- sigma warning limits, the chart signals. (a) What is the Type I error using Rule 1 alone? (b) What is the Type I error using Rule 2 alone?
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Example 4.3 (continued) Example 4.3 (continued) (b) What is the Type I error using Rule 2 alone? = 0.0455
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Lecture_10_31 - Lecture of Oct 31 No class on Nov 7,...

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