A series of residuals of a model fitted to precipitation data in a station in 20 time intervals is given in Table 3. 41. Use the turning point test and comment on the randomness of the residuals.

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TABLE 3.41 Data for Problem 17 Month Residual Month Residual 12345 0.87 11 0.78 0.28 12 0.82 0.32 13 0.14 0.34 14 0.22 0.33 15 0.65 6 0.15 16 0.48 889 7 0.18 17 0.32 0.17 18 0.07 0.21 19 0.24 10 0.22 20 0.25