Hoping to Get Information That Would Allow Them to Negotiate

Multiple Choice

Hoping to get information that would allow them to negotiate new rates with their advertisers, Natural Health magazine phoned a random sample of 600 subscribers. 64% of those polled said they use nutritional supplements. Which is true?
I. The population of interest is the people who read this magazine. II. "64%" is not a statistic; it's the parameter of interest.
III. This sampling design should provide the company with a reasonably accurate estimate of the
Percentage of all subscribers who use supplements.

A) I and II only
B) II and III only
C) I and III only
D) I, II, and III
E) I only