In each of the following conditions, the sampling frame doesn't match the population, resulting in undercoverage. Provide examples of population members which may have been omitted.
(a) The population includes all 250 students in your large statistics class. You plan to obtain simple random sample of 30 students by using sampling frame of students present next Monday. (Select all that apply.)
-Students who are out sick cannot be sampled.
-Dropouts cannot be sampled.Students who are not taking statistics cannot be sampled.
-Students who are skipping class cannot be sampled.
-Students who are on a school trip cannot be sampled.
-Home-schooled students cannot be sampled.
(b) The population consists of all 15-year-olds living in the attendance district of a local high school. You plan to obtain a simple random sample of 200 such residents by using the student roster of the high school as the sampling frame. (Select all that apply.)
-Students who are out sick cannot be sampled.
-16-year-olds cannot be sampled.Home-schooled students cannot be sampled.
-Students who are skipping class cannot be sampled.
-Students who are on a school trip cannot be sampled.
-Dropouts cannot be sampled.