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RE: My son's science experiment

Quote:

ORIGINAL: dmurphy317

Chap,
I emailed you the data this morning. Thanks for your help.

For the rest of you, here is a link that may help with ANOVA (ANalysis Of VAriance)

http://en.wikipedia.org/wiki/Analysis_of_variance

Analysis completed and emailed to you in PDF format. There are statistically significant differences for all variables (velocity, penetration, before weight, after weight), but no differences in % weight loss. Chap

PS. When your son is finished with the other 4 shots, just email me the data, I saved all my programs to convert it from Excel into SAS. SAS=Statistical Analysis System (or use to mean that 30 years ago). I don't expect the results to be any different with the other 4 shots, so if he is under a time gun you can just go with these results.

RE: My son's science experiment

All them big words chap uses sure makes my head hurt:D

RE: My son's science experiment

Well my son finally found the time to measure the expansion of the bullets from his testing so far. Here are the averages for the 3 bullet types.

Round Ball = .834

Ballet = .610

Maxiball = .594

More to follow as we hope to finish some more testing this weekend, pictures included.