EDUC 3510U Lecture : Lecture 4
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The production of Reliable Manufacturing Company for 2012 and part of 2013 follows.
2012 | 2013 | 2012 | 2013 | ||||||
Production | Production | Production | Production | ||||||
Month | (thousands) | (thousands) | Month | (thousands) | (thousands) | ||||
January | 6 | 7 | July | 1 | 2 | ||||
February | 5 | 9 | August | 6 | |||||
March | 13 | 12 | September | 15 | |||||
April | 8 | 6 | October | 5 | |||||
May | 4 | 4 | November | 9 | |||||
June | 4 | 5 | December | 3 |
a. | Using the ratio-to-moving-average method, determine the specific seasonals for July, August, and September 2012. (Round your answers to 1 decimal place.) |
July__________ , August _________, September ________ |
b. | Assume that the specific seasonal indexes in the following table are correct. Insert in the table the specific seasonals you computed in part (a) for July, August, and September 2012, and determine the 12 typical seasonal indexes. (Round your answers to 1 decimal place.) |
Year | Jan. | Feb. | Mar. | Apr. | May | June | July | Aug. | Sept. | Oct. | Nov. | Dec. |
2012 | ? | ? | ? | 92.8 | 106.2 | 92.2 | ||||||
2013 | 88.5 | 102.3 | 178.4 | 118.2 | 60.7 | 43.4 | 44.0 | 74.0 | 200.9 | 90.0 | 101.9 | 90.9 |
2014 | 87.6 | 103.7 | 170.2 | 125.9 | 59.4 | 48.6 | 44.8 | 77.7 | 196.1 | 89.1 | 113.8 | 80.3 |
2015 | 79.4 | 105.6 | 165.2 | 124.5 | 62.1 | 41.6 | 48.2 | 72.1 | 203.6 | 80.2 | 103.0 | 94.2 |
2016 | 89.0 | 112.1 | 182.9 | 115.1 | 57.6 | 56.9 | ||||||
Month | Seasonal index | |
Jan. _____ | ||
Feb. _____ | ||
March ______ | ||
April ______ | ||
May ______ | ||
June ______ | ||
July ______ | ||
August ______ | ||
Sept. _______ | ||
Oct. ________ | ||
Nov. _______ | ||
Dec. _______ | ||
c. | Interpret the typical seasonal index. |
The highest month above average was ___________ the lowest month below average was . (Use the number of the month for your answer. E.g. April = 4.) |