Question

Twenty Five successive observations on a stationary time series are given as follows: 30, 33, 32, 27, 25, 28, 29, 31, 35, 34, 38, 31, 23, 24, 34, 36, 29, 32, 38, 27, 22, 29, 20, 40, 37. Calculate r1, r2, ....., r10 and plot the correlogram.

06 Feb 2021
Answer :
Word Count : 824

We first construct the following table:

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                                                 Cotton Yield Per Plot (in Kg)

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1 30 900 -0.56                    
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8 31 961 0.44 -0.6864 -1.1264 -2.4464 -1.5664 0.6336 1.0736 -0.2464      
9 35 1225 4.44 1.9536 -6.9264
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   I  II  III  IV
 1  6.90  4.60  4.40  4.81
 2  6.48  5.57  4.28  4.45
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 4  6.90  6.65  6.75  7.75
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