In a national survey of eating habits, 3800 adults were selected randomly and contacted by telephone. Respondents were asked, “Typically, how many times per week do you purchase food at a fast-food restaurant or convenience store?” On average, those surveyed purchased food at a fast-food restaurant or convenience store 2.4 times per week.

Which of the following is true with respect to this scenario?
2.4 is a statistic and represents an estimate of the

unknown value of a parameter of interest.

3800 is the size of the population being studied.

2.4 is a parameter, and represents an estimate of the unknown value of a statistic of interest.

None of the above.

Question

In a national survey of eating habits, 3800 adults were selected randomly and contacted by telephone. Respondents were asked, “Typically, how many times per week do you purchase food at a fast-food restaurant or convenience store?” On average, those surveyed purchased food at a fast-food restaurant or convenience store 2.4 times per week.

Which of the following is true with respect to this scenario?
2.4 is a statistic and represents an estimate of the

unknown value of a parameter of interest.

3800 is the size of the population being studied.

2.4 is a parameter, and represents an estimate of the unknown value of a statistic of interest.

None of the above.