A lecturer at an arts college wants to research social media usage among students. The lecturer sends out an online questionnaire to the entire student body of 2,234 students. Out of this, only 127 students respond. One question asked is, “How many hours per day do you spend on social media?”

(a) Identify the population of interest.

(b) For the 2,234 students, one characteristic of interest was the percentage who would respond “zero” to this question. This value is computed for the 127 students who responded. Is it a parameter or a statistic? Why?