ivos c3. How was the data collected? ## Warning: package 'mosaic' was built under R version 4.1.2## Registered 53 method overwritten by 'mosaic':methodfromfortify.SpatialIPolygonsDataFrame geplot2* The 'mosaic' package masks several functions from core packages in order to addadditional features.The original behavior of these functions should notbe affected by this.e Attaching package: 'mosaic** The following objects are masked from "package:dplyr:count, do, tally## The following object is masked from 'package:Matrix':meanee The following object is masked from "package:ggplot2:##state The following objects are masked from 'package:stats':binom.test, cor, cor.test, cov, fivenum, IQR, median, prop.test,quantile, sd, t.test, var** The following objects are masked from 'package:base':max, mean, min, prod, range, sample, sumPHELPrct## starting httpd help server ...donehead (HELPrct)age anysubstatus anysub cesd di daysanysub dayslink drugrisk e2b female#1 372 371772e NAe NA149 3225yesyesyesyes30 2239 eNA36520 NA#3 264 39189343115 239 126 1sex gib homeless i1 12 id indtot linkstatus 1ink4e 1O NA2575 32#6 47yes3136511yespcs pSs fr1 male yeshoused 13 26 11 yes 25.111990 58.41369139male yes homeless 56 62 243NA NA> 26.670307 36.03694male nohoused e @341no 6.762923 74, 88633134 female nohoused 5 5428no 43.967880 61.9316811male no honeless 10 13S381 yes 21.675755 37.34558106 fenale no housed 4 4 6529e no 55.508991 46.47521# 1 blacke 2racegrp satreat sexrisk substance treat avg drinks max drinks4 cocainealcohol13562662noyeswhitenoyesblacknoheroinnowhiteblackblack* hospitalizationsheroincocaine4yesno6cocaine10134.nononoyes3.22112tall(HELPret)## 452 59NA11 2NA3650 1## 453 45NA35 1NA3650 1##sex gib home less 11 12 id indtot linkstatus link448mcspcsno 25.85177 50.60834no 41.94307 56.968681 yes 62.17550 57.25384no 33.43454 40.04572no 54.42482 53.73204no 30.21223 43.47607pss_fr racegrp satreat sexrisk substance treat avg_drinks max_drinksmale no home less e e 453housed 0 @ 454housed 13 20 455no homeless 1 24 460no homeless 13 13 462no homeless 51 51 46336##449## 450## 451 femalemaleпо3839male no28## 452malemale26## 45343## 4485 white4yesheroinno# 4497whiteno4heroinalcohol2yese 450e 45111whitenoyes1320whitenoheroin## 452no124blackwhitee 453ves9cocaineno131311no4alcoholno5151hospitalizations## 448## 4491## 450## 451## 452e 45321tally(sex, data-HELPrct)## sex## fenalemale107346bargraph(sex, data-HELPrct)

Data collection is an important part because the whole analysis will depend upon the collected data.…

Answered: 3. How was the data collected?

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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The data used is from college campuses. The variables used in the analysis below include: crime, total campus crime; enroll, total enrollment; police, employed officers. Use the estimated OLS models to answer the questions below: Model A: In(crime) = -6.631 + 1.270ln(enroll), (1.034) (.110) n = 97; R² = .5804 Model B: In(crime) = -4.794 + .923ln(enroll) (.144) (1.112) n = 97; R² = .632 +.516ln(police), (.149) Using Model A, test the null hypothesis that elasticity of crime with respect to enrollment is unit elastic, i.e. equal to one (against a two-sided alternative). Calculate the t-statistic.
d. Check that calculating appropriate weighted average of your answers in parts b and c gives the answer you found in part a
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C6. Let's continue our analysis of offenders and victims of violent crime. In the following table, U.S. Department of Justice 2011 data for the sex of offenders and the sex of victims are reported. Sex of Offender Sex of Victim Male Female Male 3,760 450 Female 1,590 140 Source: U.S. Department of Justice, Expanded Homicide Data, Table 6, 2011.
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