The average daily sales (in litres) of milk at a country store are shown in Table 4 for each of the years 1983 to 1985. Table 4 Year Quarter Average daily sales (Y) 47.6 48.9 1983 3 51.5 4 55.3 57.9 1984 2 61.7 3 65.3 4 70.2 76.1 1985 2 84.7 93.2 4 97.2 (a) Find the four- year moving averages. (b) Calculate the seasonal index by making use of the ratio-to-moving average method. Exercise: 1.9.1 2.

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схатріе: т. 9.1
The average daily sales (in litres) of milk at a country store are shown in Table 4 for each of the years
1983 to 1985.
Table 4
Year Quarter Average daily
sales (Y,)
47.6
2
48.9
1983 3
51.5
4
55.3
1
57.9
1984 2
61.7
3
65.3
4
70.2
1
76.1
1985 2
84.7
3
93.2
4
97.2
(a) Find the four- year moving averages.
(b) Calculate the seasonal index by making use of the ratio-to-moving average method.
Exercise: 1.9.1
Table 5
12:38 AM
P Type here to search
A O G 4)
4/11/2021
近
Transcribed Image Text:Content Bb 1953887 b Statistics Question | bartleby ô https://learn-eu-central-1-prod-fleet01-xythos.learn.cloudflare.blackboardcdn.com/5e8cacc75e657/1953887?X-Blackboa. Q ... of 49 + (A| (D Page view A Read aloud V Draw F Highlight O Erase 17 схатріе: т. 9.1 The average daily sales (in litres) of milk at a country store are shown in Table 4 for each of the years 1983 to 1985. Table 4 Year Quarter Average daily sales (Y,) 47.6 2 48.9 1983 3 51.5 4 55.3 1 57.9 1984 2 61.7 3 65.3 4 70.2 1 76.1 1985 2 84.7 3 93.2 4 97.2 (a) Find the four- year moving averages. (b) Calculate the seasonal index by making use of the ratio-to-moving average method. Exercise: 1.9.1 Table 5 12:38 AM P Type here to search A O G 4) 4/11/2021 近
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