The manufacturer of a 10.5-volt smoke alarm battery employed the Taguchi method to determine the better design parameters. The experimenters estimated the sig naltonoise (SIN) ratio for the proposed design to be 6.3. Based on a sample inspection of the current production process, the SIM ratio was calculated to be 5.2. The analysis of warranty showed that when the battery voltage was beyond {10.50 i 0.75} volts. the smoke alarm malfunctioned and customers returned the batteries for $6.50 each. Determine the monthly savings that the proposed new design is expected to generate if 20,000 units are manufactured each month. Suppose that the manufacturer decides not to adopt the new design but chooses to screen all detective batteries in the manufacturing plant before they are shipped to the customers. The cost for inspection in the plant is estimated to be $3 per battery. If the same amount of warranty cost is incurred in the inspection process. determine the tolerance limits for the inspection