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Looking for a 1850 Moffat $5
Grading 45 to 55 with the "Moffat & Co." on the crown clearly legible. CAC preferred. Thanks! (View Post)1 -
Re: Post your New York nationals!
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Re: Post your New York nationals!
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Re: Post your New York nationals!
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Re: A True Test To See If CACG Is As Strict As Perceived
Cochran’s formula is perhaps the most well known equation for calculating sample size, and widely used when the population is large or unknown. I chose a 90% confidence level, .5 standard deviation, … (View Post)7
