Quizzol

QUESTION:

In June 2005, a survey was conducted in which a random sample of 1,464 U.S. adults was asked the following question: "In 1973 the Roe versus Wade decision established a woman's constitutional right to an abortion, at least in the first three months of pregnancy. Would you like to see the Supreme Court completely overturn its Roe versus Wade decision, or not?"

The results were: Yes—30%, No—63%, Unsure—7% (Source: www.Pollingreport.com)

Which of the following is true?

30%, 63%, and 7% are all parameters.

30%, 63%, and 7% are all statistics.

If another random sample of size 1,464 U.S. adults were to be chosen, we would expect to get the exact same distribution of answers.

Both (A) and (C) are correct.

Both (B) and (C) are correct.

ANSWER:

30%, 63%, and 7% are all statistics.

Good job! Since the survey results are obtained from the sample, these are all statistics. Due to sampling variability, if we were to take a different sample of the same size we would not expect to get the same sample results.

Posted by Cleveland on September 22, 2024