When you are installing a new package of bees is it necessary to block the entrance of the hive after the bees are installed to force them to make it their new home? If so how long should i keep them blocked in for? If i dont will they fly away and leave the hive since it isnt their queen yet?
No need to block them in, it will just add more stress. They won't abscond without a queen.
Also should i shake the bees out of the shipping box onto the frames or should i remove half of the frames and put the box inside the hive and let them find their own way out then remove the box and replace the frames after a day or so?
I would spray them down good with light syrup and open up the side of the package as shown in this video, and then just gently dump them in.
If you wet them down, they won't fly and they will come out of the package easier.