The company manufactures chocolate bars with nominal weight of115 g per bar. In order to to avoid risk of short changing, themean weight is set as 117 g and SD of 2 g.
What is the probability that :
(a) a random chocolate bar weighs between 116 gram and 120gram?
(b) a particular sample mean would be less than 116.5millimeters chosen of 40 random samples of chocolate bar.
