emis 7307 t&e part 4 1 big issue: how many trials or data points are needed? –depends on the...
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EMIS 7307
T&E Part 4
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• Big issue: How many trials or data points are needed?– Depends on the desired statistical significance (i.e.
confidence level).
– Sometimes the desired statistical significance can not be obtained with the quantity of test units, time available for testing or budget available.
• Options?– Substitute some simulation results?
– Change confidence level?
Test Planning
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T&E Part 4
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Test Planning and Analysis
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Test Planning and Analysis
Small scatter but not part of the target population.
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Test Planning and Analysis
Might be part of the same population but we’re not very confident.
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T&E Part 4
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Test Planning and Analysis
Very confident that data are part of the same population.
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Test Planning and Analysis
Published by William Gosset in 1908. His employer, Guinness Breweries,
required him to publish under a pseudonym, so he chose "Student."
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Test Planning and Analysis
Landing distance of an F-18