Professor Z Needs to Allocate Time Among Several Tasks Next

Multiple Choice

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: What is this week's forecast using exponential smoothing with alpha = .2,if the forecast for two weeks ago was 90?

A) 49
B) 50
C) 52
D) 65
E) 78