Time Series Analysis Of Monthly Sales Of Petrol In A Petroleum Filing Station: A Case Study Of Conoil Plc, 25 Aba Road, Umuahia, Abia State.:- Azubuike, Kelvin N.
ABSTRACT
Time series approach was used to study sales
data in a filling station. The data were collected fi'om a Conoil Petrol
Station in Umuahia. The disti'ibution of Autocorrelation and Partial
Autocorrelation functions suggested a Seasonal Autoregressive Integrated Moving
Average Model, given by SARIMA (1,1,1)x(1, 0, 0)i2. The parameters of the
SARIMA were estimated with statistical software (MINITAB). The following
mathematical model was obtained: yt = 0.1567yt.i + 0.6604yt_i2 - 0.1035yt.i3 +
et - 0.9832eM. From the above model, estimates and two years forecast were
obtained. The correlogram of the residual explain a pure white noise process
for the error ofthe model.
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AZUBUIKE, A (2024). Time Series Analysis Of Monthly Sales Of Petrol In A Petroleum Filing Station: A Case Study Of Conoil Plc, 25 Aba Road, Umuahia, Abia State.:- Azubuike, Kelvin N.. Mouau.afribary.org: Retrieved Nov 17, 2024, from https://repository.mouau.edu.ng/work/view/time-series-analysis-of-monthly-sales-of-petrol-in-a-petroleum-filing-station-a-case-study-of-conoil-plc-25-aba-road-umuahia-abia-state-azubuike-kelvin-n-7-2
AZUBUIKE, AZUBUIKE. "Time Series Analysis Of Monthly Sales Of Petrol In A Petroleum Filing Station: A Case Study Of Conoil Plc, 25 Aba Road, Umuahia, Abia State.:- Azubuike, Kelvin N." Mouau.afribary.org. Mouau.afribary.org, 25 Mar. 2024, https://repository.mouau.edu.ng/work/view/time-series-analysis-of-monthly-sales-of-petrol-in-a-petroleum-filing-station-a-case-study-of-conoil-plc-25-aba-road-umuahia-abia-state-azubuike-kelvin-n-7-2. Accessed 17 Nov. 2024.
AZUBUIKE, AZUBUIKE. "Time Series Analysis Of Monthly Sales Of Petrol In A Petroleum Filing Station: A Case Study Of Conoil Plc, 25 Aba Road, Umuahia, Abia State.:- Azubuike, Kelvin N.". Mouau.afribary.org, Mouau.afribary.org, 25 Mar. 2024. Web. 17 Nov. 2024. < https://repository.mouau.edu.ng/work/view/time-series-analysis-of-monthly-sales-of-petrol-in-a-petroleum-filing-station-a-case-study-of-conoil-plc-25-aba-road-umuahia-abia-state-azubuike-kelvin-n-7-2 >.
AZUBUIKE, AZUBUIKE. "Time Series Analysis Of Monthly Sales Of Petrol In A Petroleum Filing Station: A Case Study Of Conoil Plc, 25 Aba Road, Umuahia, Abia State.:- Azubuike, Kelvin N." Mouau.afribary.org (2024). Accessed 17 Nov. 2024. https://repository.mouau.edu.ng/work/view/time-series-analysis-of-monthly-sales-of-petrol-in-a-petroleum-filing-station-a-case-study-of-conoil-plc-25-aba-road-umuahia-abia-state-azubuike-kelvin-n-7-2