Comments on: Courier versus Australia Post – Reliability Review http://www.somethinkodd.com/oddthinking/2010/03/20/courier-versus-australia-post-reliability-review/ A blog for odd things and odd thoughts. Thu, 02 Sep 2010 05:01:01 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Julian http://www.somethinkodd.com/oddthinking/2010/03/20/courier-versus-australia-post-reliability-review/comment-page-1/#comment-225577 Julian Sun, 21 Mar 2010 12:13:40 +0000 http://www.somethinkodd.com/oddthinking/?p=1170#comment-225577 Sunny, The survey covered each quarter from July 2008 - June 2009. I don't have any reason to believe Australia Post's handling of mail has degraded significantly since July 2009. I haven't studied the details, but I haven't any reason to believe that the sampling or analysis was so substandard so as to invalidate the coarse measures I was using. It had an independent auditor. So, I agree that such a sampling problem is theoretically possible, I don't see it being a problem here. <em>Update: Corrected typo. "It" had an independent auditor, not "I" had an independent auditor! :-)</em> Sunny,

The survey covered each quarter from July 2008 – June 2009.

I don’t have any reason to believe Australia Post’s handling of mail has degraded significantly since July 2009.

I haven’t studied the details, but I haven’t any reason to believe that the sampling or analysis was so substandard so as to invalidate the coarse measures I was using. It had an independent auditor.

So, I agree that such a sampling problem is theoretically possible, I don’t see it being a problem here.

Update: Corrected typo. “It” had an independent auditor, not “I” had an independent auditor! :-)

]]> By: Sunny Kalsi http://www.somethinkodd.com/oddthinking/2010/03/20/courier-versus-australia-post-reliability-review/comment-page-1/#comment-225576 Sunny Kalsi Sun, 21 Mar 2010 12:03:02 +0000 http://www.somethinkodd.com/oddthinking/?p=1170#comment-225576 You have come up with an upper bound for how much you should've been willing to pay during the time that the survey was taken. For all you know since then 50% of all mail is lost... You have come up with an upper bound for how much you should’ve been willing to pay during the time that the survey was taken. For all you know since then 50% of all mail is lost…

]]>