Parent opinion, part 1 In a large city school system with20 elementary schools, the school board is considering theadoption of a new policy that would require elementarystudents to pass a test in order to be promoted to the nextgrade. The PTA wants to find out whether parents agreewith this plan. Listed below are some of the ideas proposedfor gathering data. For each, indicate what kind of samplingstrategy is involved and what (if any) biases might result.a) Put a big ad in the newspaper asking people to logtheir opinions on the PTA website.b) Randomly select one of the elementary schools andcontact every parent by phone. c) Send a survey home with every student, and ask par-ents to fill it out and return it the next day. d) Randomly select 20 parents from each elementaryschool. Send them a survey, and follow up with a phonecall if they do not return the survey within a week.
Parent opinion, part 1 In a large city school system with20 elementary schools, the school board is considering theadoption of a new policy that would require elementarystudents to pass a test in order to be promoted to the nextgrade. The PTA wants to find out whether parents agreewith this plan. Listed below are some of the ideas proposedfor gathering data. For each, indicate what kind of samplingstrategy is involved and what (if any) biases might result.a) Put a big ad in the newspaper asking people to logtheir opinions on the PTA website.b) Randomly select one of the elementary schools andcontact every parent by phone. c) Send a survey home with every student, and ask par-ents to fill it out and return it the next day. d) Randomly select 20 parents from each elementaryschool. Send them a survey, and follow up with a phonecall if they do not return the survey within a week.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Parent opinion, part 1 In a large city school system with
20 elementary schools, the school board is considering the
adoption of a new policy that would require elementary
students to pass a test in order to be promoted to the next
grade. The PTA wants to find out whether parents agree
with this plan. Listed below are some of the ideas proposed
for gathering data. For each, indicate what kind of sampling
strategy is involved and what (if any) biases might result.
a) Put a big ad in the newspaper asking people to log
their opinions on the PTA website.
b) Randomly select one of the elementary schools and
contact every parent by phone.
20 elementary schools, the school board is considering the
adoption of a new policy that would require elementary
students to pass a test in order to be promoted to the next
grade. The PTA wants to find out whether parents agree
with this plan. Listed below are some of the ideas proposed
for gathering data. For each, indicate what kind of sampling
strategy is involved and what (if any) biases might result.
a) Put a big ad in the newspaper asking people to log
their opinions on the PTA website.
b) Randomly select one of the elementary schools and
contact every parent by phone.
c) Send a survey home with every student, and ask par-
ents to fill it out and return it the next day.
ents to fill it out and return it the next day.
d) Randomly select 20 parents from each elementary
school. Send them a survey, and follow up with a phone
call if they do not return the survey within a week.
school. Send them a survey, and follow up with a phone
call if they do not return the survey within a week.
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