Time Series Analysis of the Monthly Production of Z-Purlin (A Case Study of IUNIT Industry Onitsha)
ABSTRACT
Any business or economic action taken today is
based on yesterday's plan and tomorrow's expectation. An organization must plan
for the future in order to survive and grow. However, this project work was on
the monthly production of z-purlin using llJNT industry Onitsha as a case
study. The objectives of this project work were to construct a time series
model and to forecast future quantities of z-purlin produced in the company fo:
the year 2012. The monthly production data (2006 to 2010) was collected from
the records in order to achieve the aims of this study. The time plot of the original
series indicated a slight downward trend. The ACF and PACF of the original
series showed a cut-off at lag I respectively, hence ARMA (I, I) model was
fitted. The adequacy of the fitted model was proved with the help of the
residual ACF and PACF, which showed that no pattern was left. However, a
forecast of 2012 production year was done.
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OKOCHA, N (2023). Time Series Analysis of the Monthly Production of Z-Purlin (A Case Study of IUNIT Industry Onitsha). Mouau.afribary.org: Retrieved Dec 22, 2024, from https://repository.mouau.edu.ng/work/view/time-series-analysis-of-the-monthly-production-of-z-purlin-a-case-study-of-iunit-industry-onitsha-7-2
NDU, OKOCHA. "Time Series Analysis of the Monthly Production of Z-Purlin (A Case Study of IUNIT Industry Onitsha)" Mouau.afribary.org. Mouau.afribary.org, 20 Feb. 2023, https://repository.mouau.edu.ng/work/view/time-series-analysis-of-the-monthly-production-of-z-purlin-a-case-study-of-iunit-industry-onitsha-7-2. Accessed 22 Dec. 2024.
NDU, OKOCHA. "Time Series Analysis of the Monthly Production of Z-Purlin (A Case Study of IUNIT Industry Onitsha)". Mouau.afribary.org, Mouau.afribary.org, 20 Feb. 2023. Web. 22 Dec. 2024. < https://repository.mouau.edu.ng/work/view/time-series-analysis-of-the-monthly-production-of-z-purlin-a-case-study-of-iunit-industry-onitsha-7-2 >.
NDU, OKOCHA. "Time Series Analysis of the Monthly Production of Z-Purlin (A Case Study of IUNIT Industry Onitsha)" Mouau.afribary.org (2023). Accessed 22 Dec. 2024. https://repository.mouau.edu.ng/work/view/time-series-analysis-of-the-monthly-production-of-z-purlin-a-case-study-of-iunit-industry-onitsha-7-2