Quote:
Originally Posted by diamondlarry
Very interesting results. Anyone have any ideas on what may be causing the distance to decrease with the higher pressures?
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I don't think I would conclude that from the raw figures.
The difference between the averages of those last 2 sets (1.1 ft, from 60 to 70 psi) is smaller than the standard deviation within each set (2.1 for 60 psi; 1.7 for 70).
It's been years since I had a stats class, but I don't think that "result" is statistically significant. It's within the margin of error.
If you wanted to tease some valid conclusions from very high pressure testing for these tires, you'd have to run another/different test.