It looks like transplant shock. My queen palm I ordered was the same way. I wouldnt put it outside anytime soon. I would leave it in the ppot let keep the roots warm let them grow back strong before putting it outside. With out roots moving water through the plant it will dry up even in partial sun.

It's gonna be OK. Because you got it bare rooted the balance between what's under and above ground were disturbed, that's why it's dropping some leaves. Just cut off every yellow/brown leaf, keep the roots warm (it is very important). Palms regenerate roots much quicker and easier if the rootball is kept warm after transplanting. And make sure the air around your palm stays humid.

I agree with the above, transplant shock/shipping trauma. And yes, I would NOT put the plant out until it's nice and warm. You could put it out in a warm, bright sheltered place out of direct sun on warm days, but bring in when temps drop much below 60.

Actually, if you have a soil heating mat, that would probably be a good thing to do at this point. A fungicide drench on the roots probably wouldn't hurt, either.

But, it should do ok for you long-term.

I was going to say the same exact thing wx,I have ordered probably a 100 palms off e-bay and I can tell you that bare root shipping should be illegal! well.kinda,anyway it is very hard on palms ESPECIALY in cold weather!
The one thing you have going is that the spear is moving,that is good news,keep an eye on it and don't plant it until the end of May,it's not going to grow any faster(probably slower at best)if you plant it and it will probably go into shock if planted outside in cold soil,I have made this mistake before,better for it to be outside on warm days adjusting to outside conditions and brought inside during cold,baby the roots for a while-

The main thing that has helped me is to soak that plant in root stimulator. Best tip i ever got try it !