Suppose that observations on a stock price (in dollars) at the end of each of 15 consecutive
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
Estimate the stock price volatility. What is the standard error of your estimate?