Select the incorrect statement regarding the relationship between type of user and type of information: -senior executives need less aggregated information than do lower-level managers-middle managers need more non financial, or operational data than do senior executives-assembly line supervisors need more immediate feedback on performance than do senior executives-senior executives use general economic information as well as financial information

Consider a treasury bill with a rate of return of 5% and the following risky securities: security a: e(r) = .15; variance = .0400 security b: e(r) = .10; variance = .0225 security c: e(r) = .12; variance = .1000 security d: e(r) = .13; variance = .0625 the investor must develop a complete portfolio by combining the risk-free asset with one of the securities mentioned above. the security the investor should choose as part of her complete portfolio to achieve the best cal would be a. security a b. security b c. security c d. security d