From the data below for Apple (AAPL) stock, calculate the upper and lower Bollinger bands,...

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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 3.43 Lower Bollinger Band Upper Bollinger Band 3/26/2019 186.82 180.91 3/27/2019 188.50 181.53 3.63 3/28/2019 188.75 182.21 3.83 3/29/2019 189.98 182.99 4.03 4/1/2019 191.27 183.74 4.23 4/2/2019 194.05 184.51 4.42 4/3/2019 195.38 185.43 4.60 4/4/2019 195.72 186.48 4.75 4/5/2019 197.03 187.64 4.89 4/8/2019 200.13 188.84 5.02 4/9/2019 199.53 189.90 5.13 4/10/2019 200.65 190.83 5.22 4/11/2019 198.98 191.77 5.28 4/12/2019 198.90 192.54 5.30

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