The amount of money spent weekly upon cleaning, maintenance, and repairs at the large restaurant was observed over long period of time to be approximately normally distributed, with mean ? = $615 and standard deviation ? = $38.
a) If $646 is budgeted for the next week, determine the probability that the actual costs will exceed budgeted amount? (Round your answer to four decimal places.)
b) How much should be budgeted for weekly repairs, cleaning, and maintenance so that the probability that the budgeted amount will be exceeded in a given week is only0.08? (Round your answer to the nearest dollar.)