Conditions For each situation described below, identify the population and the sample, explain what p and pn rep-resent, and tell whether the methods of this chapter can be used to create a confidence interval.a) Police set up an auto checkpoint at which drivers arestopped and their cars inspected for safety problems.They find that 14 of the 134 cars stopped have at least one safety violation. They want to estimate the per-centage of all cars that may be unsafe. b) A TV talk show asks viewers to register their opinionson prayer in schools by logging on to a website. Of the602 people who voted, 488 favored prayer in schools.We want to estimate the level of support among thegeneral public.c) A school is considering requiring students to wear uniforms. The PTA surveys parent opinion by send-ing a questionnaire home with all 1245 students; 380 surveys are returned, with 228 families in favor of thechange.d) A college admits 1632 freshmen one year, and fouryears later 1388 of them graduate on time. The collegewants to estimate the percentage of all their freshmanenrollees who graduate on time.
Conditions For each situation described below, identify the population and the sample, explain what p and pn rep-resent, and tell whether the methods of this chapter can be used to create a confidence interval.a) Police set up an auto checkpoint at which drivers arestopped and their cars inspected for safety problems.They find that 14 of the 134 cars stopped have at least one safety violation. They want to estimate the per-centage of all cars that may be unsafe. b) A TV talk show asks viewers to register their opinionson prayer in schools by logging on to a website. Of the602 people who voted, 488 favored prayer in schools.We want to estimate the level of support among thegeneral public.c) A school is considering requiring students to wear uniforms. The PTA surveys parent opinion by send-ing a questionnaire home with all 1245 students; 380 surveys are returned, with 228 families in favor of thechange.d) A college admits 1632 freshmen one year, and fouryears later 1388 of them graduate on time. The collegewants to estimate the percentage of all their freshmanenrollees who graduate on time.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Conditions For each situation described below, identify
the population and the sample, explain what p and pn rep-
resent, and tell whether the methods of this chapter can
resent, and tell whether the methods of this chapter can
be used to create a confidence interval.
a) Police set up an auto checkpoint at which drivers are
stopped and their cars inspected for safety problems.
They find that 14 of the 134 cars stopped have at least
a) Police set up an auto checkpoint at which drivers are
stopped and their cars inspected for safety problems.
They find that 14 of the 134 cars stopped have at least
one safety violation. They want to estimate the per-
centage of all cars that may be unsafe.
centage of all cars that may be unsafe.
b) A TV talk show asks viewers to register their opinions
on prayer in schools by logging on to a website. Of the
602 people who voted, 488 favored prayer in schools.
We want to estimate the level of support among the
general public.
c) A school is considering requiring students to wear
on prayer in schools by logging on to a website. Of the
602 people who voted, 488 favored prayer in schools.
We want to estimate the level of support among the
general public.
c) A school is considering requiring students to wear
uniforms. The PTA surveys parent opinion by send-
ing a questionnaire home with all 1245 students; 380
ing a questionnaire home with all 1245 students; 380
surveys are returned, with 228 families in favor of the
change.
d) A college admits 1632 freshmen one year, and four
years later 1388 of them graduate on time. The college
wants to estimate the percentage of all their freshman
enrollees who graduate on time.
change.
d) A college admits 1632 freshmen one year, and four
years later 1388 of them graduate on time. The college
wants to estimate the percentage of all their freshman
enrollees who graduate on time.
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