I am not alone in my experience as a corporate AT&T/Cingular user wanting an iPhone. See my last post iPhone activation – Finally after 3 days . In the past 30 minutes I’ve read the same pain from many people. How can Apple and AT&T get this so wrong?
Some posts of interest:
No iPhones for corporate accounts?!
Anyone else here on an AT&T corporate account?
Apple, er AT&T, tells corporate types to pound sand
No iPhone for business account customers at launch?
MySQL’s built-in AVG() computes the arithmetic mean — the sum divided by the count. That is the right default for many questions, but it is not always the right measure of central tendency.
MySQL offers three different approaches to extending the SQL capabilities with the default product you download and install. These are: User Defined Function (UDF) MySQL Manual MySQL Plugin MySQL Manual MySQL Component MySQL Manual For the purposes of this post I will be using the current LTS version MySQL 8.
The one-sample Z-test determines whether a sample mean differs significantly from a known population mean when the population standard deviation is also known. It is the appropriate test when the population parameters are established — quality control benchmarks, national averages, long-run process measurements — and you want to evaluate whether a new sample is consistent with them.
