I have data:
- How many people register on cinema web site
- How many of these registrations purchase tickets
Conversion from (1) to (2) is exponentially distributed.
However, I've noticed that conversion on Friday + weekends is slightly higher than on work days. Each day I have same number of registration. One registration costs the same amount of money regardless day of week.
Users registered on Friday + weekends are from another distribution in compare with users registered on workdays.
To spend more money on internet advertising during weekends and less during work days. Taking into account that registration costs the same regardless of a day of week.
- Is it correct to test such hypothesis ?
- What test is more suitable for such situation?
My own thoughts were to compare this 2 distributions using Mann-Whitney U test.