A CTR of 1.5% seems to be falling on the lower side. Anything up to 5% is considered fine but have come across people reporting 10 to 20% without any problem. Apart from the CTR, CPM too is important in deciding the adsense income.
I think yes its bit low but it depends how much traffic you are getting and how many clicks you are getting
Yes its low. I've seen from 2.5% ctr all the way up to 16% ctr. What matters is the placement of your ads. Shuffle them around, do some a-b testing and find out what combination works best for you. Good luck!
I wont consider it as a low ctr its a good ctr you are getting, but if your traffic is good you should expect more
Its a normal ctr, you really shouldn't aim for more than 3-5% ctr. Because it might look unnatural to google if its higher, which will get your account banned..
I would say its ok CTR it depends on what t ype of visitors you are getting and how many clicks you are getting but this is good CTR