Accession Number : AD0617558

Title :   ESTIMATION OF SIGMA USING AVERAGE RANGE FROM K RANGES OF VARYING SIZES.

Descriptive Note : Technical note,

Corporate Author : FRANKFORD ARSENAL PHILADELPHIA PA

Personal Author(s) : Granville,William ,Jr.

Report Date : JUN 1965

Pagination or Media Count : 11

Abstract : An efficient way was determined to estimate the population standard deviation using k ranges of varying sizes. Standard deviation has been estimated using k ranges of equal size, but the investigator has yet to see the development for the above case. The investigation relies on estimation of standard deviation, using the overall range and the biasness encountered therein. These results may be used to estimate standard deviation when one has subgroups of different sizes belonging to a sample of size N. (Author)

Descriptors :   (*QUALITY CONTROL, ANALYSIS OF VARIANCE), (*ANALYSIS OF VARIANCE, QUALITY CONTROL), STATISTICAL DISTRIBUTIONS, ERRORS, POPULATION(MATHEMATICS)

Distribution Statement : APPROVED FOR PUBLIC RELEASE