a stratified random sample? WO ber the students from 1 to 2000 and us ey the first 100 students to pick up their

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12. To estimate the proportion of students who plan to purchase tickets to an upcoming school
fundraiser, a high school decides to sample 100 students as they pick up their schedules in
August. There are 2000 students at the school. Which of the following sampling plans would
result in a stratified random sample?
(a) Number the students from 1 to 2000 and use random numbers to select 100 students.
(b) Survey the first 100 students to pick up their schedule. ng
(c) Randomly select 100 students from a list of 950 female students at the school
(d) Divide the students into those who pick up their schedules early (first 1000 students) and
late (last 1000 students). Use random numbers to identify 50 from each group.
(e) Select one of the first 20 students to pick up their schedule using a random number table
and then select every 20" student after.
th
Transcribed Image Text:12. To estimate the proportion of students who plan to purchase tickets to an upcoming school fundraiser, a high school decides to sample 100 students as they pick up their schedules in August. There are 2000 students at the school. Which of the following sampling plans would result in a stratified random sample? (a) Number the students from 1 to 2000 and use random numbers to select 100 students. (b) Survey the first 100 students to pick up their schedule. ng (c) Randomly select 100 students from a list of 950 female students at the school (d) Divide the students into those who pick up their schedules early (first 1000 students) and late (last 1000 students). Use random numbers to identify 50 from each group. (e) Select one of the first 20 students to pick up their schedule using a random number table and then select every 20" student after. th
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