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

Year Disk Drives

1 140

2 156

3 184

4 204

5 220

a) Using simple linear regression?, the forecast for the number of disk drives to be made next year? = 243.2 disk drives ?(round your response to one decimal? place).

?b) The mean squared error? (MSE) when using simple linear regression? = ________ drives2 ?(round your response to one decimal? place).

c) The mean absolute percentage error? (MAPE): using simple linear regression? = ___________ ?% ?(round your response to two decimal? places).