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Conducting A Statistical Experiment

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CelticKnot's Avatar
United States
12837 Posts
 Posted 10/17/2011  12:47 am  Show Profile   Bookmark this reply Add CelticKnot to your friends list Get a Link to this Reply
I agree. The coin population is far too vast for one (or ten, or 100) person/people to be able to process a sample size that means anything.

This could be turned into a SETI-esque project where the distributed processing would be people going through coins and uploading their data. Would just need to set up a web site for folks to enter their data, and recruit hopefully hundreds of volunteers.

Ok, probably more like wheresgeorge.com than SETI, but you get the idea.

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Saruma's Avatar
United States
968 Posts
 Posted 10/17/2011  02:11 am  Show Profile   Bookmark this reply Add Saruma to your friends list Get a Link to this Reply
Coppercoins,

How did you come up with that sample size? That seems really high. Are you trying to determine the the frequency of multiple, very rare varieties of cents?
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sel_69l's Avatar
Australia
21788 Posts
 Posted 10/17/2011  02:39 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
I am anticipating that the Halves will yield the most silver.

Halves have the least amount of circulation.
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biggfredd's Avatar
United States
9104 Posts
 Posted 10/17/2011  04:19 am  Show Profile   Bookmark this reply Add biggfredd to your friends list Get a Link to this Reply
A few years ago, someone was researching some die variety or something on 44d and 45d cents, and wanted a million of them, or some huge amount. Buy prices on these common circ wheats got as high as $5.50 a roll at one point.
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FOTD's Avatar
United States
81 Posts
 Posted 10/17/2011  08:33 am  Show Profile   Bookmark this reply Add FOTD to your friends list Get a Link to this Reply
A website for a project like that is a novel idea! I'd definitely participate. I'd get 2K in coins from my local bank to help with the numbers. Although I live in such a small community that I would almost certainly have contact the bank to have them order that much change in advance...lol I'd love to their faces if I walked in with 2 grand and asked to exchange it for pennies! I have noticed though lately that all the change I have been getting from my financial institution is of the new variety and have only found about 40 wheaties in the last year that I've been here.
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eagle79's Avatar
United States
32 Posts
 Posted 10/17/2011  10:02 am  Show Profile   Bookmark this reply Add eagle79 to your friends list Get a Link to this Reply
I am looking forward to seeing your results and comparing them with mine. Dimes and halves have been killing me lately.
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Ricardocody's Avatar
United States
1204 Posts
 Posted 10/17/2011  1:14 pm  Show Profile   Bookmark this reply Add Ricardocody to your friends list Get a Link to this Reply
I agree with coopercoins , is about to pointless any kind of work tring to make a statisticaly record !
1st of all you have to keep all the coins untill the end of your research to make sure you are not counting the same coins twice !
I searched so many coins in the past years that it would be impossible record every single coin , I mean I would have to add couple more years only for the time I would spend writting on the paper the results and counting snd separating etc !

I looked through lil over 1.3 million pennies and I think its not enough to any accurate Statistic result because there a re way too much coins to be selected and counted !

If you are doing just for curiosity , good luck and I want to see the results to compare with my area !
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Rewster's Avatar
United States
208 Posts
 Posted 10/17/2011  2:57 pm  Show Profile   Bookmark this reply Add Rewster to your friends list Get a Link to this Reply
I have to disagree with those who have said you will probably find the most silver in halves in this experiment. I would have agreed with this 5 years ago or so, but I find that halves are so searched through anymore. I'm not trying to turn this into a halves debate, but I think halves are just a vicious circle anymore. A box is bought, gone through, returned to another bank. They don't use any halves so it is sold to Brinks or whomever, and it is re-rolled and the pattern repeats . IMHO, you will find the most silver in dimes.
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Conder101's Avatar
United States
17884 Posts
 Posted 10/17/2011  3:08 pm  Show Profile   Bookmark this reply Add Conder101 to your friends list Get a Link to this Reply

Quote:
just carl I think you may be wrong there. On an average, coin finds should be the same since coins do travel and are sent to different banks when they are turned in. they are constantly getting mixed up.

Actually he is right. Yes there is some mixing but it is slower than you might think. Coins do tend to stay in the same areas where they were originally released. It is still easier to come up with S mint cents and nickels from the late 60's and early 70's along the West coast than it is on the east coast or in the mid-west.
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bibd's Avatar
Canada
838 Posts
 Posted 10/17/2011  3:22 pm  Show Profile   Bookmark this reply Add bibd to your friends list Get a Link to this Reply
Regardless of sample size being "statistically meaningful", I feel that a nice large sample is interesting in its own right.

I was disappointed that "the cent project" died out. Send me the partial data and I'll make the spreadsheet/analysis (for free)!

Also, aren't peoples' errors potentially more significant than errors caused by a small sample size? Even the coins damaged beyond recognition throw off the sample. Even 300 million cents may be meaningless with such a high bar for accuracy.
Edited by bibd
10/17/2011 3:24 pm
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coincollector123's Avatar
United States
850 Posts
 Posted 10/17/2011  4:30 pm  Show Profile   Bookmark this reply Add coincollector123 to your friends list Get a Link to this Reply
Here are my results
Nickels: $672: Silver: .5 Oz (10 wartime) .75 oz per $1000
Dimes: $760: Silver: .63 oz (9 silver) .82 oz per $1000
Quarters: $670:Silver: .18 oz (1 silver) .268 oz per $1000
Half:$1500: Silver: 15.6 oz (94 40% and 4 90%) 10.4 oz per $1000
Halves are by far more productive since I started keeping track this May.
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ancientcoinguy's Avatar
United States
842 Posts
 Posted 10/17/2011  4:45 pm  Show Profile   Bookmark this reply Add ancientcoinguy to your friends list Get a Link to this Reply
There is a website for this already in the works. Read this thread to find out more about it.

https://goccf.com/t/93446&whichpage=1
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biggfredd's Avatar
United States
9104 Posts
 Posted 10/17/2011  7:57 pm  Show Profile   Bookmark this reply Add biggfredd to your friends list Get a Link to this Reply

Quote:
I have to disagree with those who have said you will probably find the most silver in halves in this experiment. I would have agreed with this 5 years ago or so, but I find that halves are so searched through anymore.


A quick post count of various threads (half finds, dime finds, etc) confirms this.
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jamwins's Avatar
United States
58 Posts
 Posted 10/21/2011  3:40 pm  Show Profile   Bookmark this reply Add jamwins to your friends list Get a Link to this Reply
I can't wait to see the results. Sometimes I'll get out 10 boxes and not find a single one. Then I take out a couple and find loads. That makes it fun - it's a surprise!
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sel_69l's Avatar
Australia
21788 Posts
 Posted 10/21/2011  9:44 pm  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Halves have the least amount of circulation.

That may be true.

As well, it also may mean that halves are searched less than they are circulated.
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