Consider two perfectly negatively correlated risky securities, x and y. security x has an expected rate of return of 9% and a standard deviation of return of 27%. y has an expected rate of return of 17% and a standard deviation of return of 39%. what is the weight of security y in the minimum variance portfolio? enter your answer rounded to two decimal places. do not enter % in the answer box. for example, if your answer is 0.12345 or 12.345% then enter as 12.35 in the answer box.

Barbara flynn is in charge of maintaining hospital supplies at general hospital. during the past year, the mean lead time demand for bandage bx-5 was 65 (and was normally distributed). furthermore, the standard deviation for bx-5 was 6. ms. flynn would like to maintain a 90% service level. refer to the standard normal table for z-values. a) what safety stock level do you recommend for bx-5? safety stock=)what is the appropriate reorder point? reorder point=

Driving would be more pleasant if we didn't have to put up with the bad habits of other drivers. a newspaper reported the results of a valvoline oil company survey of 500 drivers in which the drivers marked their complaints about other drivers. the top complaints turned out to be tailgating, marked by 24% of the respondents; not using turn signals, marked by 19%; being cut off, marked by 15%; other drivers driving too slowly, marked by 12%; and other drivers being inconsiderate marked by 5%.

Let's consider a hypothetical airline, mudlarks airlines. on one of its flights, precious records show that about 15% of people who had tickets for the flights did not take the flight. there are 120 seats on the plane. 1. how many tickets should mudlarks airlines sell for this flight? 2. as an added consideration, suppose that tickets on this flight cost a flat rate of $250. in addition, mudlarks airlines must give any traveler who purchased a seat for the flight, but who cannot travel due to overbooking, a $400 certificate for their trouble. does this change your answer in question one? now, suppose that mudlarks airlines forms a partnership itch another airline, puffin air. their agreement allocates 100 seats on the flight to mudlarks airlines and another 20 seats to puffin air. the 2 airlines sell tickets for the flight independently of each other. 3. assuming the same 15% no show percent for each airline, how many tickets should each sell?