Suppose that observations on a stock price in dollars) at the end of each of 15 consecutive weeks are as follows: 30.2, 320, 31.1.30.1, 30.2, 303, 30.6 33.0 32.9, 33.0,335,35.3, 33.7. 33.5, 332 What is the estimated annualized volatility and standard error? 20.79% and 0393 25% and 473% 25% and 0743 34% and 0473