Daily high temperatures in St. Louis for the last week were as follows: 92, 94, 93, 95, 97, 88, 95 (yesterday). 88, a) The high temperature for today using a 3-day moving average 93.33 degrees (round your response to one decimal place) b) The high temperature for today using a 2-day moving average 91.5 degrees (round your response to one decimal place) c) The mean absolute deviation based on a 2-day moving average degrees (round your response to one decimal place).
Daily high temperatures in St. Louis for the last week were as follows:92, 94, 93, 95, 97, 88, 95 (yesterday). a) The high temperature for today using a 3-day moving average = 93.33 degrees b) The high temperature for today using a 2-day moving average = 91.5 degrees c) The mean absolute deviation based on a 2-day moving average = degrees

Expert Answer
a) (97+88+95)/3 = 93.33
b) (88+95) / 2 = 91.50

MAD = 1/2 sum_{i=1}^{2}left | x-bar{x} right |

MAD = 1/2 ! (88-91.5) + ( 95-91.5) !

MAD = 3.50

the mean absolute deviation based on a 2-day moving average

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