Explain each.

Part I. Do as indicated. 1. A research objective is presented. For each, identify the (a) population and (b) sample in the study. (a) A polling organization contacts 2141 male university graduates who have a white-collar job and asks whether or not they had received a raise at work during the past 4 months. (b) A quality-control manager randomly selects 70 bottles of ketchup that were filled on July 17 to assess the calibration of the filling machine. (c) Every year the PSA releases the Current Population Report based on a survey of 50,000 households. The goal of this report is to learn the demographic characteristics, such as income, of all households within the Philippines