As everyone suggested, stay away from these groups. They will be using you to manipulate the market most of the times. And understand that no one can predict the price of a coin, if they could have then why will they share it with you, they'll put all their money and retire.
Also think long term, what will you do if they disappear..? In short it's best to learn and trade yourself
They must be playing with low volume coins so their prediction will looks like accurate but in fact they're just pumping the coins and giving a signals price more than they bought, this kind of whales strategy is known since a long time. We hope no newbies get tricked with this trick anymore.