Following are two weekly forecasts made by two different methods for the number of gallons of gasoline, in thousands, demanded at a local gasoline station. Also shown are actual demand levels, in thousands of gallons:

Week Forecast Method 2 Actual Demand 1 0.80 0.72 2 1.21 1.05 3 0.92 1.00 4 1.11 1.00

The MAD for Method 1 = ___ thousand gallons

2. Attendance at Orlando's newest Disneylike attraction, Lego World, has been as follows:

Quarter Guests (in thousands) Quarter Guests (in thousands) Winter Year 1 63 Summer Year 2 125 Spring Year 1 99 Fall Year 2 52 Summer Year 1 155 Winter Year 3 94 Fall Year 1 75 Spring Year 3 151 Winter Year 2 64 Summer Year 3 210 Spring Year 2 83 Fall Year 3 97

Based on the given attendance, the seasonal indices for each of the seasons are

3.The number of internal disk drives (in millions) made at a plant in Taiwan during the past 5 years follows:

Observation Year Disk Drives 1 1 142 2 2 156 3 3 190 4 4 202 5 5 216

Using simple linear regression, the forecast for the number of disk drives to be made next year = ___ disk drives