Data collected on the yearly demand for 50-pound bags of fertilizer at Wallace Garden Supply are shown in the following table. Develop a 3-year moving average to forecast sales for year 12. Year Demand (Bags) 4. 2. 6. 4 4 5. 10 6. 8. 8. 12 10 14 11 15 O A. 14.00 O B. 11.79 OC. 14.87 O D. 13.67

Months Weight (lbs) 7.2 0 1 9.4 2 10.5 4 13.2 6 15.9 Birth Year 1900 1910 1920 1930 1940 1950 1960 a) Find the line of best fit: Life Expectancy 47.3 50.0 54.1 59.7 62.9 68.2 69.7 0.+ b) Estimate Hannah's weight at her one-year visit: 7. The table below shows the average life expectancy (in years) based on certain birth years. a) Find the line of best fit: 24.6 b) Estimate the life expectancy for someone born in 2005: 8. The table below shows the relationship between the number of hours a student studied and their grade on a certain test. Sign out M

a.  Compute a three-period moving average for these stock prices (in R, order = 3).  What are the first two moving average values? (Round your answer to two decimal points) First: $ Second: $

The following table contains the demand from the last 10 months: MONTH ACTUAL DEMAND 1 31 2 34 3 33 4 35 5 37 6 36 7 38 8 40 9 40 10 41 a. Calculate the single exponential smoothing forecast for these data using an α of 0.30 and an initial forecast ( F1�1 ) of 31. Note: Round your intermediate calculations and answers to 2 decimal places.   b. Calculate the exponential smoothing with trend forecast for these data using an α of 0.30, a δ of 0.30, an initial trend forecast ( T1�1 ) of 1, and an initial exponentially smoothed forecast ( F1�1 ) of 30. Note: Round your intermediate calculations and answers to 2 decimal places.   c-1. Calculate the mean absolute deviation (MAD) for the last nine months of forecasts. Note: Round your intermediate calculations and answers to 2 decimal places.   c-2. Which is best? multiple choice Exponential smoothing with trend forecast Single exponential smoothing forecast