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<br />Appendix 3 <br /> <br />TABLES OF K VALUES <br /> <br />The following tab1e1 contains K values for use in equation (1), for <br />skew coefficients, G, from 0 to 9.0 and 0 to -9.0 and exceedance proba- <br />bilities, P, from 0.9999 to 0.0001. <br /> <br />Approximate values of K can be obtained from <br />formation (26) when skew coefficients are between <br /> <br />the following trans- <br />1.0 and -1.0: <br /> <br />2 [ G G 3 ] <br />K = - [(K - -) - + 1] - 1 <br />G n 6 6 <br /> <br />(3-1) <br /> <br />where K is the standard normal deviate and G is the skew coefficient. <br />n <br />Because of the limitations (27) involved in use of this and other trans- <br /> <br />forms, use of the table is preferred. <br /> <br />1This table was computed by Or. H. Leon Harter and published in <br />Technometrics, Vol. 11, No.1, Feb. 1969, pp. 177-187, and Vol. 13, No. <br />1, Feb. 1971, pp. 203-204, "A New Table of Percentage Points of the <br />Pearson Type III Distribution" and "More Percentage Points of the <br />Pearson Distribution," respectively. These publications describe <br />values only for positive coefficient of skew. Values for negative <br />coefficient of skew were obtained by inverting the positive table and <br />changing signs. The latter work was performed by the Central Technical <br />Unit, SCS, Hyattsvi11e, Md. <br /> <br />3-1 <br />