The Mongolian giant sunflower produces seeds that are over 1 inch long, grow up to 18 feet tall, and flowers that are 1 1/2 feet wide. each flower head produces 1,000 seeds. you decide to harvest the seeds at the end of the season so that you can sell them the following spring. if you save 8 flowers for harvesting how many seeds is that? write your answer in scientific notation.

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.