what is this years forecast using the naive approa

Demand Time Period 7 years ago 6 years ago 5 years ago 4 years ago 3 years ago 2 years ago 1 year ago 1 What is this year's forecast using the naive approach? (53) 2 What is this year's forecast using a four-year simple moving average? Or three-year? [four-year = 49.5; three-year = 50.71 3 What is this year's forecast using a three-year weighted moving average with the following weights? .20 (3 periods ago) .30 (2 periods ago) .50 (last period) [52.3] 4a What is "b," the slope? [7] 4b What is "a," the y-intercept? [10] 4c What is the trend line equation? [y = 10 + 7t] 4d What is this year's and next year's forecasts? [66,73] "Note: if you are not getting correct "a" & "b" check how you set up the columns; the oldest period should be "1" and the most recent"7