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 22
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).