c. The inter-quartile range for the income of musicians is less than the inter-quartile range for the income of police officers.d. The median income for police officers and musicians is the same.Review later5. Miguel wanted to determine the average length of time students at his school spend each night doing homework. He asks the first 50 students who walk into the building onMondaya. What is his population?b. What is his sample?If Miguel wants to determine the average length of time students in just his grade level spend nightly on homework, instead of the whole school, answer the following:c. What is the new population?d. Describe an appropriate way that Miguel can get a new sample?Review later6. Astudy was conducted to determine reaction times of all 7th graders in your school by dropping a ruler and seeing how far it dropped before it was caught. 64% of 7th graders inMichael's math class were able to catch the ruler before it fell 2 inches.O us v 02acer23$4&34578.9.er{yfk1J

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Answered: 5. Miguel wanted to determine the…

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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You are the operations manager for an airline and you are considering a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% confident that the sample percentage is within 4.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisle seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 35% of air passengers prefer an aisle seat. n = (Round up to the nearest integer.) ? Enter your answer in each of the answer boxes, MacBook DII DD 20 000 000 F10 F11 F12 esc F5 F6 F7 F8 F9 F1 F2 F3 F4 & ( ) ! @ # 1 2 4 5 6. 7 8 { Q W E R Y U P tab %3D K L %24
You are the operations manager for an airline and you are considoring a higher fare level for passengers in aisle seats. How many randomly selected air passengers must you survey? Assume that you want to be 95% oonfident that the sample percentage is within 5.5 percentage points of the true population percentage. Complete parts (a) and (b) below. a. Assume that nothing is known about the percentage of passengers who prefer aisie seats. (Round up to the nearest integer.) b. Assume that a prior survey suggests that about 37% of air passengers prefer an aisle seat (Round up to the nearest integer.)
1. You want to know the number of fans at the Miami Dolphins and Dallas Cowboys game that think the Dolphins will win. You survey 50 fans with season tickets for the Dolphins. a. What is the population of your survey? b. What is the sample of your survey? c. Is the sample biased or unbiased? Explain.
3) A principal of a local high school wants to select 30 students from a student body of 600 students. He wants the proportion of students in each grade level to be the same in the sample as it is in the entire school. Describe how he could make a stratified sample if there are 100 freshmen, 160 sophomores, 200 juniors, and 140 seniors. Show all work. Write final answer in sentence form. o

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