If two software engineers each give me a range estimate for the cost of a software project, say
1) $250K - $260K
2) $100K - $500K
both with a 90% confidence level, how should I reconcile this data to give me a single 90% range estimate?
If you assume they are normal distributions, then the 250-260 is N(255, 3.0398) and the second is N(300, 121.5914) So the variances are 9.2404 and 14784.46
So if you are adding these, it makes X~N(555,
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