RT Book, Section
A1 Glantz, Stanton A.
SR Print(0)
ID 57420910
T1 Appendix A. Computational Forms
T2 Primer of Biostatistics, 7e
YR 2012
FD 2012
PB The McGraw-Hill Companies
PP New York, NY
SN 978-0-07-178150-3
LK accessanesthesiology.mhmedical.com/content.aspx?aid=57420910
RD 2024/04/19
AB If  the  value  you  need  is  not  in  the  statistical  table,  it  is  possible  to  estimate  the  value  by  linear  interpolation.  For  example,  suppose  you  want  the  critical  value  of  a  test  statistic,  C,  corresponding  to  ν  degrees  of  freedom,  and  this  value  of  degrees  of  freedom  is  not  in  the  table.  Find  the  values  of  degrees  of  freedom  that  are  in  the  table  that  bracket  v,  denoted  a  and  b.  Determine  the  fraction  of  the  way  between  a  and  b  that  v  lies,  f  =  (ν  −  a)/(b  −  a).  Therefore,  the  desired  critical  value  is  C  =  Ca  +  f  (Cb  −  Ca),  where  Ca  and  Cb  are  the  critical  values  that  correspond  to  a  and  b  degrees  of  freedom.