1.5. A GSS asked subjects whether astrology—the study ofstar signs—has some scientific truth (GSS question SC1TEST3). Of 1245 sampled subjects, 651 responded definitely or probably true, and 594 responded definitely orprobably nottrue. The proportion responding definitely or probably true was 651/1245 = 0.523.

(a) Describe the population of interest.

(b) For what population parameter might we want to make an inference?

(c) What sample statistic could be used in making this inference?

(d) Doesthe value ofthe statistic in

(c) necessarily equal the parameter in (b)? Explain.