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Old 06-08-2020, 03:30 PM   #119 (permalink)
Cyborg ECU
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
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Posts 72 through 80

Originally Posted by SecondWind View Post
to MetroMPG: I've read and re-read your post which starts this thread. I have no training in statistics, and although I can do the "A-B-A" testing, I don't know how to tell whether differences are significant. Can you describe "statistical significance" in layman's terms? For instance, if I do 5 two-way "A" runs with an average of 59.8 MPG, and standard deviation of 1.4, then 5 "B" runs of 60.6 MPG and s.d. of 1.4, does this mean anything?
Another useful blast from the ecomodder past, if you are interested in testing. Beginning with post #72 and running at least through #80 there is a useful beginner discussion of how reliable ABA measurements might be and how to tell. Post #72 permalink:
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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