bones default to a black color when created to make them easily distinguishable from the rest of the match true or false​

First to answer will be the brainliest i need the answer asap

In 2012 it was reported that 64% of adult americans watch football regularly. you want to know if this percentage has increased. to do this you randomly sample 400 adults from across the united states. you ask all these adults, "do you regularly watch football? " 268 of the adults respond that they do regularly watch football. carry out at alpha =.05 a hypothesis to test your claim. make sure to check all necessary conditions and state your conclusion in the context of the situation

How did the scholars date the mosaic?