EC_315_Week_1_HW_Jamie_Boyer

EC_315_Week_1_HW_Jamie_Boyer - X = 43.2 (this is the mean...

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EC/315 Week 1 Homework Solutions Jamie Boyer Problem 65 [15,300 (4.5) + 10,400(3.0) + 150,600(10.2)] = 9.28 176,300 Problem 66 a. The mean is $3.438 found by 51.57/15 b. $3.44 c. $3.49 Problem 69 a. The range is 55 which is found by 72 – 17 b. The mean deviation is given as 14.5, found by 145/10 where
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Unformatted text preview: X = 43.2 (this is the mean for this sample). The calculation of the mean deviation is given as follows and x bar is 43.2: |x-x bar| 32 11.2 21 22.2 60 16.8 48 4.8 54 10.8 17 26.2 72 28.8 55 11.8 33 10.2 41 2.2 145 Now divide 145/10 and get obtain 14.5 c. 17.6245...
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This note was uploaded on 04/23/2011 for the course EC 315 taught by Professor Barcus during the Spring '10 term at Park.

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