Apples are pears by comparing the weight [Two-Stage / GS Designs]

posted by Helmut Homepage – Vienna, Austria, 2015-12-01 17:35 (3356 d 23:05 ago) – Posting: # 15685
Views: 13,423

Dear Detlew

❝ ❝ […] Much lower.

❝ Much lower than what?


TSD’s E[N] than GSD’s N.

❝ Your presentation of the GSD results is a little bit unfair. It seems that the expected N is 100.


I see.

❝ But thats not true: […]



You are absolutely right. As (almost) always. ;-) THX!

The line
  res[j,  7] <- sprintf("%.0f", max(cum))
should be replaced by
  res[j,  7] <- sprintf("%.1f", (1-tmp1$pct_s2/100)*n[1] +
                                (tmp1$pct_s2/100)*max(cum))


                E[N]   
            ───────────
expected N   GSD    TSD
───────────────────────
    50      71.3   63.7
   100      84.6   99.2

Interesting.

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