1.
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Select DOE > Design Diagnostics > Sample Size and Power.
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2.
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Click Reliability Demonstration.
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4.
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Select Weibull from the Distribution list.
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5.
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6.
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Enter 2 for Max Failures Tolerated.
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7.
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Enter 1000 for Time.
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8.
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Enter 0.9 for Probability of Surviving.
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9.
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Enter 800 for Time of Demonstration.
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10.
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Leave Number of Units Tested blank.
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11.
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Click Continue.
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Figure 16.18 Reliability Demonstration Calculator