I'm not sure how a specific time can be a process measurement? An elapsed time could be, is that what your trying to get here?
-----Original Message-----
From: SPSSX(r) Discussion [mailto:
[hidden email]] On Behalf Of Omar Farook
Sent: Monday, April 02, 2007 1:53 PM
To:
[hidden email]
Subject: [BULK] time format and X-Bar control chart
Importance: Low
Dear Experts,
I have developed an X-Bar control chart from a process measurement variable with Date hh:mm format, the range of my data between 0:00 and 9:40, the chart gave me a central line with average = 7361.02, and a y-axis from -5104 till 19826.
May I know where the mistake and how to solve it?
Thanks.
Omar.
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