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In: Statistics and Probability

2014 I 31 2017 I 69 II 24 II 54 III 23 III 46 IV 16...

2014 I 31 2017 I 69 II 24 II 54 III 23 III 46 IV 16 IV 32 2015 I 42 2018 I 82 II 35 II 66 III 30 III 51 IV 23 IV 38 2016 I 53 2019 I 91 II 45 II 72 III 39 III 59 IV 27 IV 41 Create a multiple regression equation incorporating both a trend (t=0 in 2013: IV) and dummy variables for the quarters. Let the first quarter represent the reference (or base) group. Complete (e) thru (h) using your results. This is a computer deliverable. (e) Test to see if there is an upward trend in new customers. Use alpha = 0.01. (f) Test to see if the model has explanatory power. Use alpha = 0.05. (g) Forecast the number of new customers in the first and second quarters of 2020. (h) Test for the existence of first order autocorrelation, use alpha = 0.05. The calculated dw = 1.19.

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