Q. Would you mind assisting with these few questions as well, since you did an awesome job the first time?
1. Duracell Ltd claim that the life of their batteries in motorized soft toys is approximately normally distributed with a mean of 102.9 hours and a standard deviation of 16.5 hours. The best 65% of batteries would last beyond how many hours? Answer correct to 2 decimal places.
2. The average and standard deviation of the amount of Goods and Services tax remitted by performance artists in a twelve month period were $5.042 thou and $1.551 thou respectively. If a sample of 110 artists was taken, find the average value above which only 15% would lie. Give your answer in dollars to the nearest dollar.