Question

A company distributing coffee produces coffee bags of whose weight is normally distributed with a mean of 11.9 oz. and a standard deviation of 0.2 oz.

1. What is the probability a bag weights less than 12 oz?

1. 0.3085             b) 0.6915            c) 0.8413                d) 0.9987                        

2. If you fill the bag with more than 12.2 oz of coffee it will overflow. What percentage of bags overflows?

1. 0.13%              b) 6.68%            c) 99.87%               d) 93.32%                      

3. Current regulations of the state of Florida require that bags of coffee must be filled with at least 97% of the stated weight on the bag (12 oz.). If your daily production of coffee bags is 10,000 bags, how many will be under the current required amount?

1. 98            b) 47                        c) 968              d) 470

Answer 1