Not nearly.

You might not see any movement in a house... but maybe there's a bouncer asleep in there after working all night.

Much better to see that the family announced they were spending the day at the beach.

Both: that's my point. A check-in somewhere else doesn't guarantee there's no one home.

No movement, lights or noise could also mean someone is in the house sleeping, in the backyard, in another part of the house if it is a larger one and you also have no idea how soon the inhabitant(s) will be back.