The lengths of adult males' hands are normallyr distributed with mean 194 mm and standard deviation is i" mm. Suppose that 4? individuals are randomly chosen. Round all answers to 4 where possible. a. What is the distribution of a? a ~ N{| 1' i} b. For the group of 4?, find the probability that the average hand length is less than 192. E- Find the first quartile for the average adult male hand length for this sample size. I I d. For part b}, is the assumption that the distribution is normal necessary? 0 'r'esO No