Question

For another subject (a 29-year-old male) in the study by Diskin et al. (A-11), acet levels were normally distributed with a mean of 870 and a standard deviation of 211 ppb. Find the probability that on a given day the subject's acetone level is: a) Between 600 and 1000 ppb b) Over 900 ppb c) Under 500 ppb d) Between 900 and 1100 ppb NITED STATES) [D e圈曲粗明串兪1

Answer 1

me on 드 8-70 is-a st o n daad normal-vanate- 211 21 use standarl nomal toble :0.7324 -01003 0.632l

2 し2Love..gooppb 900 g00 - 2 11 드 PI z> 0.14 ) use Stondarl nommal table 1- .S557

PX500) 5OO STO use standacel nmaltable 二、0.04.01

Between go0 one woo pph 2 I P(241.0g use standlaad ncmaltable 0.8621-0.5557 0.3064