step by step please

Q2. A designer for security systems is planning to design a hand scanner for subject's verifications. The picture below shows a common scanner. He asked an ergonomist to help him identifying the scanner length based on population hand length. The ergonomist collected had length measurement in cm using 5 subjects from both gender as shown in the table below. Identify the minimum length that will be recommended by the ergonomist to fit at least 95 percent of the population. Comment on the accuracy of the ergonomist recommendations. Show detailed