Date:         Wed, 24 Mar 2010 16:08:00 -0400
Reply-To:     SUBSCRIBE SAS-L Anonymous <paul555w@HOTMAIL.COM>
Sender:       "SAS(r) Discussion" <SAS-L@LISTSERV.UGA.EDU>
From:         SUBSCRIBE SAS-L Anonymous <paul555w@HOTMAIL.COM>
Subject:      Which Statistical test to use?

Hi.

I currently measure success of Marketing campaigns. Success is based on a
few different factors such as changing revenue and reducing churn.
I use t-test to measure the difference in revenue across the whole
targeted vs a control group. And use Chi squared test for measuring churn.

I measure this seperately each month.

I have a couple of questions.

1. Are these the best tests to use?

2. How can I compare month on month. I use 0.1 as being statistically
significant but if a campaign is 0.2 three months in a row could I say
that overall the campaign is significant or would I have to role up all
the data together?

Basically I'm looking to find a way of measuring 3 months worth of a
campaign together but without having to gather all the data in SAS again.

Any help appreciated - hopefully the above all makes sense.

Cheers