Professor Z needs to allocate time among several tasks next week to include time for students' appointments. Thus, he needs to forecast the number of students who will seek appointments. He has gathered the following data: Week    Number of students 6 Weeks ago    51 5 Weeks ago    79 4 Weeks ago    83 3 Weeks ago    89 2 Weeks ago    71 Last Week    93 What is this week's forecast using exponential smoothing with alpha = 0.3 , if the forecast for two weeks ago was 77 ? a. 75.2 b. 78.8 c. 69.86 d. 80.54

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