Exercises2.11 Campus survey. A researcher conducts a survey to learn about the sexuaior of college students on a particular campus. A list of the undergraduatuniversity is used to select participants. The investigator sends out 500but only 136 are returned.(a) Consider how the low response rate could bias the results of this stu(b) Speculate on potential limitations in the quality of information theresearcher will receive on questionnaires that are returned.2.12 Sampling nurses. You want to survey nurses who work at a particularOf the 90 nurses who work at this hospital, 40 work in the maternity wwork in the oncology ward, and 30 work in the surgical ward. You destudy 10% of the nurse population so you choose nine nurses as follownurses are chosen at random from the 40 maternity nurses, two are chrandom from the 20 oncology nurses, and three are chosen at random fr30 surgical nurses. Is this a simple random sample? Explain your respon2.13 Telephone directory sampling frame. Telephone surveys may use a teldirectory to identify individuals for study. Speculate on the type of houthat would be undercovered by using this sampling frame.2.14 Random-digit dialing. Random-digit dialing is often used to select telsurvey samples. This technique randomly selects the last four digits ofphone number from a telephone exchange. (An exchange is the firstelephone numbers after the area code.) This type of sample gets arouproblem of using a telephone book as a sampling frame; however, othe

Given Information: A survey was conducted to learn about the sexual behavior of college students on…

2.11 Campus survey. A researcher conducts a survey to learn about the sexua ior of college students on a particular campus. A list of the undergradua university is used to select participants. The investigator sends out 500 but only 136 are returned. (a) Consider how the low response rate could bias the results of this st (b) Speculate on potential limitations in the quality of information the researcher will receive on questionnaires that are returned.

2.11 Campus survey. A researcher conducts a survey to learn about the sexua ior of college students on a particular campus. A list of the undergradua university is used to select participants. The investigator sends out 500 but only 136 are returned. (a) Consider how the low response rate could bias the results of this st (b) Speculate on potential limitations in the quality of information the researcher will receive on questionnaires that are returned.

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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