[Leitz]

Hey everyone, one thing I despise about statistics is that many times their wrong. I took the results from the polls that were sticky'd and ran a confidence interval on them.

I tend to get no less than 50 mpg consistently, no less, ever with my 6MT. However, I can't compare it to a CVT because I don't have one...

6MT = 37.68 to 38.23 ~*~(s=2.922, n=306)
CVT = 38.01 to 38.68 ~*~(s=2.866, n=196)
~Alpha=0.05 and two-tailed~

And as you can see they overlap, so with the results of the poll, technically they get the same gas mileage. The polls maxed at 42 mpg, and I get 50, so... this means that the results of the polls are biased in that they favor lower gas mileage.

Scientifically speaking there is no significant difference in gas mileage between the 6MT and CVT at 95% confidence.

I would love to discuss this!!!

Namely possibly expanding the poll, why the results are the way they are, or am I just being overly conscious about this and annoying everyone?

 

[Leitz]

Too many variables for the poll results tell you what you want to know.
Different drivers, fuel blends and additives, tires, roads, traffic, ambient temps, model year, modifications, weight carried, topography, etc.

Sample size is probably not big enough to negate these influences.

And edit: I suspect your conclusion is correct - there is probably only a theoretical difference in fuel economy between the two transmissions.

With the sample size of over 300, the effect of the driving conditions should the same. Of course it does widen the confidence interval, it should widen it on both trannies. I would love to run a two sample t-test on the data. I can't do that by hand though, I'll have to get on my old school's SPSS...