(Solution) - Refer to Problem 25 The default multiplicative decomposition in Minitab -(2025 Original AI-Free Solution)

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Refer to Problem 25. The default multiplicative decomposition in Minitab assumes a linear trend. Plot the employed men data in Table P-25 and examine the years 1993-2000 and 2001-2003. Is a linear trend appropriate? If not, can you suggest a trend curve that might be appropriate? Fit your suggested trend curve and store the residuals. Compute the autocorrelation function of the residuals. Do the residual autocorrelations suggest a seasonal component? Explain.