Use the data given below to answer the following question(s). The details of the clock sales at a supermarket for the past 6 weeks are shown in the table below. The time series appears to be relatively stable, without trend, seasonal, or cyclical effects. The simple moving average value of k is set at 2 Week 1 2 3 4 5 6 Units sold 88 44 54 65 72 75 If the smoothing constant is assumed to be 0.7, and setting F 1 and F2 = A 1. the exponential smoothing sales forecast for week 7 is approximately 70 clocks 80 clocks 50 clocks 60 clocks