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couvillion 08-01-2012 20:38

Ball weights
 
Measure the weight of the three balls you got in you KoP and post the weight of each in this thread.
So that every one can get a idea of the variations in weight that they have.

O'Sancheski 08-01-2012 20:46

Re: Ball weights
 
Each ball weighs approximately 0.7 lbs.

So 3*0.7= 2.1 lbs.

couvillion 09-01-2012 18:12

Re: Ball weights
 
305.1 g
302.1 g
303.2 g


So currently I see a 1% difference in weight. At 50 feet that might be a 6inch difference in distance. If other people add their number we will have data that has statistic meaning. My observations here are meaningless because 3 is not a meaningful sample size.

dmalone 09-01-2012 23:12

Re: Ball weights
 
Using the 3 ball weights posted below and our 3 weights I ran a 1000 piece random sample in Mintab based upon the average & standard deviation of the 6 to estimate the population....

Stem-and-leaf of Weight l N = 1000
Leaf Unit = 0.0010


2 61 07
16 62 02446666777889
66 63 00001111222333334444555555566667777777788888899999
236 64 00000000000111111111111112222222222233333333333333 34444+
(289) 65 00000000000000001111111111111111111112222222222222 22222+
475 66 00000000000000000000000001111111111111111111111111 22222+
220 67 00000000000000000000011111111111111122222222222222 22222+
65 68 000000111111122222333333344444455556666667777789
17 69 000122244467889
2 70 56

Summary:
Min ~ .610 lbs
Mean ~ .651 lbs
Max ~ .706 lbs

More than 6 samples will improve the estimate of the population however it looks fairly tight...

Dan.Tyler 10-01-2012 11:38

Re: Ball weights
 
Quote:

Originally Posted by couvillion (Post 1099951)
Measure the weight of the three balls you got in you KoP and post the weight of each in this thread.
So that every one can get a idea of the variations in weight that they have.

.290 kg
.294 kg

Sorry... only had a triple beam balance available when I did my measurements. Also only had 2 balls available to me... have to find that last one...


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