Hi, the Gage Study Type 1 shoud be performed before a Gage R&R study, in order to check the repeatability and Bias. In case that there no master sample exists, it is not possible to find out bias. Should be also in this case The Gage Study Type 1 performed? If i understand it right, the with the Gage R&R Study will be the repeatability checked as well, but not on the 25-50 parts. How the linearity will be checked in Minitab?