Peter Biggs wants to know how growth managers performed last year. Biggs assumes that the population cross-sectional standard deviasion of growth manager returns is 6 percert and that the ceturns are indopendent across managers. How large a fandom sample does Biggs need it he wants the standard deviation of the sample means to be 0.5 inch 1 , not 0.25 ) percent? Enter your answer rounded to the noarest whole number