Abasketball player with a poor foul-shot record practices intensively during the off-season. he tells the coach that he has raised his proficiency from 55% to 65%. dubious, the coach asks him to take 10 shots, and is surprised when the player hits 9 out of 10. complete parts a) through d) below. a) suppose the player really is no better than beforelong dashstill a 55% shooter. what's the probability he could hit at least 9 of 10 shots anyway? (hint: use a binomial model.)

Emery pharmaceutical uses an unstable chemical compound that must be kept in an environment where both temperature and humidity can be controlled. emery uses 825 pounds per month of the chemical, estimates the holding cost to be 50% of the purchase price (because of spoilage), and estimates order costs to be $48 per order. the cost schedules of two suppliers are as follows: vendor 1 vendor 2 quantity price/lb quantity price/lb 1-499 $17 1-399 $17.10 500-999 $16.75 400-799 $16.85 1000+ $16.50 800-1199 $16.60 1200+ $16.25 (a) what is the economic order quantity for each supplier? (b) what quantity should be ordered and which supplier should be used? (c) the total cost for the most economic order sire is $