Determining Validity:
A magazine article claimed that 3 out of 4 American voters supported the President's decision to decrease taxes. Which survey parameter would make the data valid?
A: The magazine surveyed half of all its subscribers.
B: The magazine surveyed voters who voted in the last election.
C: The magazine surveyed registered voters living in Austin, Texas.
D: The magazine surveyed a random sample of 20,000 voters from across the country.
I'm pretty sure its D, right?
A magazine article claimed that 3 out of 4 American voters supported the President's decision to decrease taxes. Which survey parameter would make the data valid?
A: The magazine surveyed half of all its subscribers.
B: The magazine surveyed voters who voted in the last election.
C: The magazine surveyed registered voters living in Austin, Texas.
D: The magazine surveyed a random sample of 20,000 voters from across the country.
I'm pretty sure its D, right?