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seniors have a driver's license. Suppose we tak seniors and find the proportion who have a dri a. What value should we expect for our s b. What is the standard error? c. Use your answers to parts a and b to cc

seniors have a driver's license. Suppose we tak seniors and find the proportion who have a dri a. What value should we expect for our s b. What is the standard error? c. Use your answers to parts a and b to cc

MATLAB: An Introduction with Applications
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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7.31 7.32 Chapter 7: Section Exercises a? Explain. Driver's License (Example 70) According to The Washington Post, 72% of high school seniors have a driver's license. Suppose we take a random sample of 100 high school seniors and find the proportion who have a driver's license. a. What value should we expect for our sample proportion? b. What is the standard error? c. Use your answers to parts a and b to complete this sentence: We expect to have their driver's license, give or take 4 _%. d. Suppose we increased the sample size from 100 to 500. What effect would this have on the standard error? Recalculate the standard error to see if your prediction was correct. BA Attainment According to a 2017 Pew Research report, 40% of millennials have a BA degree. Suppose we take a random sample of 500 millennials and find the proportion who have a BA degree. a. What value should we expect for our sample proportion? b. What is the standard error? JUL c. Use your answers to parts a and b to complete this sentence: We expect to have a BA degree give or take %. P 369 Aa W % % ()))
Transcribed Image Text:7.31 7.32 Chapter 7: Section Exercises a? Explain. Driver's License (Example 70) According to The Washington Post, 72% of high school seniors have a driver's license. Suppose we take a random sample of 100 high school seniors and find the proportion who have a driver's license. a. What value should we expect for our sample proportion? b. What is the standard error? c. Use your answers to parts a and b to complete this sentence: We expect to have their driver's license, give or take 4 _%. d. Suppose we increased the sample size from 100 to 500. What effect would this have on the standard error? Recalculate the standard error to see if your prediction was correct. BA Attainment According to a 2017 Pew Research report, 40% of millennials have a BA degree. Suppose we take a random sample of 500 millennials and find the proportion who have a BA degree. a. What value should we expect for our sample proportion? b. What is the standard error? JUL c. Use your answers to parts a and b to complete this sentence: We expect to have a BA degree give or take %. P 369 Aa W % % ()))
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