From the data below for Apple (AAPL) stock, calculate the upper and lower Bollinger bands, which represent plus (or minus) two standard deviations of the 20-day simple moving average added (subtracted) from the 20-day simple moving average. If the daily price approaches or exceeds the upper Bollinger band, traders will look for a continued upward movement in the stock price. (Do not round intermediate calculations. Round your answers to 2 decimal places.)

From the data below for Apple (AAPL) stock, calculate the upper and lower Bollinger bands, which represent plus (or minus) two standard deviations of the 20-day simple moving average added (subtracted) from the 20-day simple moving average. If the daily price approaches or exceeds the upper Bollinger band, traders will look for a continued upward movement in the stock price. (Do not round intermediate calculations. Round your answers to 2 decimal places.) Date AAPL Close 20-Day Simple Moving Average Standard Deviation of 20-Day Moving Average 3.54 Lower Bollinger Band Upper Bollinger Band 3/26/2019 186.93 181.02 3/27/2019 188.61 181.64 3.74 3/28/2019 188.86 182.32 3.94 3/29/2019 190.09 183.10 4.14 4/1/2019 183.85 4.34 191.38 194.16 4/2/2019 184.62 4.53 4/3/2019 195.49 185.54 4.71 4/4/2019 186.59 4.86 4/5/2019 187.75 4/8/2019 4/9/2019 195.83 197.14 200.24 199.64 200.76 199.09 188.95 190.01 190.94 5.00 5.13 5.24 5.33 5.39 4/10/2019 4/11/2019 191.88 4/12/2019 199.01 192.65 5.41