PPRuNe Forums - View Single Post - GT says fatal 737 MAX crashes caused by 'incompetent crew.'
Old 26th Jan 2020, 21:14
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Rated De
 
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Originally Posted by know_nothing_PPL
The accident proportions for Boeing 737-600/700/800/900 and the Boeing 737 Max of 0.06 and 3,08 per million flights are different on the 0.000000000000001 level (two-tailed z-test for two proportions). That means that in saying the MAX is unsafer than the MAX, your risk to be wrong is 1:1000000000000000. I have never before seen such a significance level.

To answer your question: let's bend statistics and assume that 10% of the MAX and 30% of the 737-600/700/800/900 flights were outside the US and all fatal MAX crashes and 50% of the pre-MAX fatal crashes took place outside the US. The ridiculously high significance level remains the same, in other words, even outside the US there is no uncertainty that the MAX has a way higher fatal accident rate.
The inference is very clear..
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