MTH 380 Lecture Notes - Lecture 8: Vtt Technical Research Centre Of Finland
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[rta, lo. ft 8r p. trtl (1la random sample bf n = l-5 observations was selected from a normal population. The sample mean and variance were x :3. 91 and s2 =0. 32l4. find a90% confidence intervalforthe population varianceo2. (t+t m,^,,ffu^al th/wdt f,1" ftu yoprilr,aor^ vdttdr^"l is. T"r. orrlq " z3. 58a , t"o. gsr rq : g,t+d ! Tt0. of,rv zo,! tq t\ (0. 32t,{l }e l < j!fg. larql lf z3. 6gt. Tz. o ameters of the pieces are normally distributed. = (1,0r)z o ta,s+ll t (t. o3jz r,(,t. or) 2tto. 33lz+ (o. qs), r. i). + [. of = g,1 0 rt - 3=9s fr5. * so. oot"l 1-b = o," o. gssrb = l,)\- Af precision instrument is guaranteed to read accurateiy to within 2 units. A sample of four instrun ent :ea: -:s c- the same object yielded the measurements 353, 351, 351, and 355. :el from normal population of all possible measure that can be obtained for the given object.
