Since the enactment on federal legislation on aerosol can propellants, manufacturers of hairsprays and deodorants have been introducing liquid sprays. A new machine used for filling cans of liquid hairspray can be set for any average fill. If the amount of fill is distributed with a variance of 0.0025 oz.^2, what setting will cause 93% of the cans to contain 12 oz . or less of liquid?