1. Suppose the observations on a stock price (in rands) at the end of consecutive days weeks are as follows: 30.2,32.0,31.1,30.1,30.2,30.3,30.6,33.0,32.9,33.0,33.5,33.5,33.7,33.5,33.2 a). Estimate the stock price volatility assuming that there are 252 trading days. b). What is the standard error of your estimate