-36- 



Other 



Description 



Total sawlog bd.ft. volume 

 Total sawlog cb.ft. volume 

 Total pulpwood volume 

 Total number of sample units 

 Percentage of trees/acre 

 t -value 



Subroutines MDSTI and MDNRIS 



MDSTI and MDNRIS are adapted from the International Mathematical and 

 Statistical Libraries, Inc. (IMSL) . Both subroutines have been edited 

 removing capabilities not needed in this application. The remaining code 

 is reproduced in Appendix E in accordance with the IMSL policy on research 

 work as stated on page INTRO-22 of the July, 1977 IMSL library manual. 



MDSTI is called by OUTPl to calculate the percentage point of the 

 Student's t distribution. MDNRIS is called by MDSTI and is used to evaluate 

 the inverse normal probability distribution function. MDSTI gives 5 signif- 

 icant digit accuracy (IMSL 1977). Furthermore, table 26.10, p. 999 of the 

 Handbook of Mathematical Functions edited by Abramowitz and Stegun was 

 duplicated by MDSTI (IMSL 1977) . 



No variable dictionary is presented. The interested reader may refer 

 to pages MDSTI-1, MERFI/MERFCI/MDNRIS-1, and MERFI/MERFCI/MDNRIS-2 of the 

 1977 IMSL Library manual. 



