Discussion:
Q: A packaging machine is used to put onions into 5-pound bags. In fact the weights vary according to the normal distribution with expected value of average µ = 5.01 lb and standard deviation s = 0.05 lb. Assume that 95% of bags with weight closest to µ is considered as normal. What would be the weight range of normal onion bags? Is an individual bag of 4.90 lb normal?