A-sample-of-20-cigarettes-is-tested-to-determine-nicotine-vomtent-and-the-average-value-observed-was-1-2mg-Compute-a-99-percentage-two-sided-confidence-interval-or-the-mean-nicotine-content-if-it-is-k

Question Number 59098 by Huygens last updated on 04/May/19

A s a m p l e o f 20 c i g a r e t t e s i s t e s t e d t o d e t e r m i n e n i c o t i n e v o m t e n t

a n d t h e a v e r a g e v a l u e o b s e r v e d w a s 1.2 m g . C o m p u t e

a 99 p e r c e n t a g e t w o - s i d e d c o n f i d e n c e i n t e r v a l

o r t h e m e a n n i c o t i n e c o n t e n t i f i t i s k n o w n t h a t t h e s t a n d a r d d e v i a t i o n o f a {c i g a r e t t e}^{'} s

n i c o t i n e c o n t e n t i s 0.2 m g .