A medical device company is investigating a device for patients recovering from rotator cuff surgery. They have developed a working prototype of their device, based on the measurements of their test subjects. This device covers the shoulder and upper arm. In the test population, the shoulder and upper arm have a combined average length of 55.1 cm with a standard deviation of 3.5 cm. Using anthropometric charts, determine:
a) The height of the test subject in the 42$^{nd}$ percentile of the population
b) The percentile of a test subject whose shoulder+upper arm length is measured to be 60.8 cm