Introduction
Gunshot wounds; bullet caliber is increasing, a look of this increase from years 19982003. This data is derived from the use of larger caliber firearms in accidents, homicides and suicides. Data was collected from the measurements of bullets removed from trauma patients then submitted to a surgical pathology laboratory. This data was collected from the years of 1998 to 2002 with patient medical record number and the year obtained. Approximately 78 percent of all bullets were intact and sufficient for use in the study. Bullet fragments and pellets were excluded.
“Among gun deaths in the United States, a very small fraction of all crimes are attributed to firearm accidents, firearm injuries of undetermined intent and legal intervention involving firearms. These deaths amount to 4.4 percent of the total numbers of gun deaths (25,663) in the United States during the most recent year (2000) such data are available. Of the remaining 95.6 percent of gun deaths, homicide accounted for 37.7 percent and suicide for 57.9 percent. This apparent increase in suicide by gun contrasts similar data from 1985, when homicide (44.1%) more closely paralleled suicide (51.8%) by gun.” (Caruso, RP, Swan, KG, 2003)
The article in this paper suggest that ”mortality does not increase and even seemingly decreases because care for the trauma victims has become so increasingly innovative, efficient, and comprehensive that the trauma victims, including patients injured by missiles from guns, who would have died from their wounds in the past are now survivors. ” (Caruso, RP, Swan, KG, 2003)
Caliber is defined as the diameter of a missile or of the barrel for the weapon (bore) through which the bullet passes.
Caliber is expressed in hundredths (two digits) or thousandths (three digits) of an inch. Preceding “caliber” with a decimal point is actually incorrect because the decimal point is redundant. Caliber implies hundredths or thousandths of an inch. Caliber can also be expressed in millimeters, divided by 25.4 equals the caliber. Thus, 9 mm ÷ 25.4 = 35 caliber. Conversely, caliber times 25.4 equals diameter of bullet in millimeters. Thus, a 45 caliber bullet will measure 11.4 mm in diameter as will the bore or internal diameter of the barrel of the gun designed to fire the round or the cartridge containing the bullet. Bullet, plus powder, primer, casing, and so forth, constitutes the cartridge or round. Bullet, strictly speaking, consists only of the missile leaving the end of the weapons’ barrel.
How to Cite this Page
MLA Citation:
"Regression Analysis." 123HelpMe.com. 29 Jun 2017
<http://www.123HelpMe.com/view.asp?id=83432>.
Title
 Length
 Color Rating


How To Analyze The Regression Analysis Output From Excel Essay
 How to Analyze the Regression Analysis Output from Excel In a simple regression model, we are trying to determine if a variable Y is linearly dependent on variable X. That is, whenever X changes, Y also changes linearly. A linear relationship is a straight line relationship. In the form of an equation, this relationship can be expressed as Y = α + βX + e In this equation, Y is the dependent variable, and X is the independent variable. α is the intercept of the regression line, and β is the slope of the regression line.... [tags: Regression Analysis Statistics]

912 words (2.6 pages) 
Strong Essays 
[preview] 
Regression Analysis of Dependent Variables Essay
 ... The DurbinWatson statistic ranges in value from 0 to 4. Values approaching 0 indicate positive autocorrelation and values toward 4 indicate negative autocorrelation. The DurbinWatson statistic (DW Statistic) values which are nearer to 2 suggest that there is no autocorrelation among residuals. Table: 2 represents the results of serial correlation test and denotes the values which are nearer to the optimal value 2. This indicates the nonautocorrelation or the absence of serial correlation.... [tags: serial correlation, heteroskedasticity]

1167 words (3.3 pages) 
Research Papers 
[preview] 
Essay on Regression Analysis
 Introduction Gunshot wounds; bullet caliber is increasing, a look of this increase from years 19982003. This data is derived from the use of larger caliber firearms in accidents, homicides and suicides. Data was collected from the measurements of bullets removed from trauma patients then submitted to a surgical pathology laboratory. This data was collected from the years of 1998 to 2002 with patient medical record number and the year obtained. Approximately 78 percent of all bullets were intact and sufficient for use in the study.... [tags: essays research papers]

866 words (2.5 pages) 
Strong Essays 
[preview] 
Essay on Using OLS Linear Regression Analysis Estimates two Models
 The OLS linear regression analysis is a crucial statistics tool to estimate the relationship between variables. Usually, the estimator indicates the causality between one variable and the other (A Sykes, 1993) (e.g the product price and its demand quantity). This report will analyzes the product ‘Supaclean’, a new cleaning agent in Cleanomax PLC, though two model: a demand function and a multivariate demand function. After analysing the estimator, the weakness and the room of improvement of this statistics tool will be discussed.... [tags: supa clean, cleano max plc, demand function]
:: 6 Works Cited

1653 words (4.7 pages) 
Powerful Essays 
[preview] 
Determinants of Philippine Trade: A Regression Analysis of Trade and its Factors from 1980
 ... Scope and Limitations The researcher chose the Philippines as the country data reference point since it is has the direct impact on Filipinos. Furthermore, because of data availability constraint, the study is limited to the data of the Philippine Trade from 1980 – 2011.Thus, only capturing 31 years leaving other years especially 2012 and 2013 afloat and left out. There are three independent variables, regressors, used to clearly determine each variable’s effect on the dependent variable, regressand, Trade which is expressed in percentage of GDP.... [tags: globalization, international trade]
:: 17 Works Cited

1070 words (3.1 pages) 
Strong Essays 
[preview] 
Different Statistical Methods Essay
 ... This is the only use for a ztest (Tanner & YoussefMorgan, 2013). The one sample ttest accomplishes the same thing as the ztest. The calculated t from the sample is compared to a t value which is determined by degrees of freedom and alpha. The ttest can be onetailed or twotailed, based on what is being tested. It can be used when there are fewer than 30 items in the sample and the sample is not normally distributed. The null hypothesis is that the sample mean and population mean are statistically equal.... [tags: regression analysis, probability]
:: 4 Works Cited

798 words (2.3 pages) 
Strong Essays 
[preview] 
Determinants of Carbon Dioxide Emissions in the Philippines Essay
 ... Review of Related Literature Recent studies regarding economic development has woken up to a new chapter in the 20th century. Many researchers are now greatly interested in incorporating environmental factors when discussing growth, industrialisation, and trade for reasons that in the end, boils down to the wanting of environmentally sustainable economic growth. Numerous studies were already conducted all around the world to determine the effect of macroeconomic variables to carbon dioxide emissions.... [tags: regression analysis, global warming]
:: 8 Works Cited

1679 words (4.8 pages) 
Term Papers 
[preview] 
Essay on Regression and Hypothesis Testing
 ... The regression on the other hand is probably the most used statistical procedure in public health and beyond (example, business, law, administrative area, banks, etc). Regression normally utilizes more than one variable to predict the value of one variable in regards to the other. It uses the related variables to construct the behavior of the taken variable. The linear correlation which is represented as r is a number that can be achieved by using a scatter plot to draw a graph and an equation representative of the associations and strength between the variables used for correlation (Triola & Triola, 2006, pg.449).... [tags: statistical analysis]

539 words (1.5 pages) 
Research Papers 
[preview] 
Regression of Baseball Player Salaries Essay
 Introduction The Major League Baseball (MLB) organization is a group of baseball teams that have made it to the Major League. The Major League Baseball data set provides the 2005 salaries of multiple Major League Baseball (MLB) teams as well as individual salaries of players within 30 teams (Lind, Marchal & Wathen, 2008). The MLB data set gives information such as batting averages, wins, salaries, home runs, errors, etc (Lind, Marchal & Wathen, 2008). Two specific teams stand out of the information when looking at their stats; St.... [tags: Statistics, Regression Paper]
:: 1 Works Cited

943 words (2.7 pages) 
Good Essays 
[preview] 
Regression Results Essay
 3.3.4. Results For the purpose of finding a suitable function for benefits transfer, different metaregression models become specified: (i) different functional forms (e.g., a simple linear form versus semilog form); (ii) a fully specified model including all independent variables and a restricted model on grounds of statistical significance or econometric problems (e.g., multicollinearity); (iii) robust consistent standard errors to correct for heteroskedasticity. As shown by the test for heteroskedasticity (see Table 3.7), a simple linear form has heteroskedasticity.... [tags: Research Analysis ]

2200 words (6.3 pages) 
Strong Essays 
[preview] 
Related Searches
” (Caruso, RP, Swan, KG, 2003)
“Bullets submitted to surgical pathology during the years of 1998 through 2002 were measured with a millimeter rule to determine caliber or transverse diameter. Bullet calibers were expressed in terms of mean plus or minus standard error. Mortality figures were derived from analysis of medical records concerning the outcomes of all victims of gunshot wounds treated at the trauma center in Newark, New Jersey, during the years studied and expressed as percentages.” (SafetyLit, 2004 p 42)
Due to the vast amounts of data in the aforementioned article, Team C has chosen to perform a regression analysis based on two data sets from within the article. Regression analysis allows us to develop a mathematical equation to enable us to “estimate the value of one variable based on the variable of another.” (Regression Analysis in Research, p.139) In regression analysis, one variable is always dependent on another, called the independent variable.
The data sets tested are the mean caliber of bullets used, along with the mortality percentage associated with gunshot wounds through the years 1998 to 2002.
The mean caliber of bullets is the independent variable, as the percentage of gunshot mortality is dependent on this data, thus making it the dependent variable.
As previously mentioned, due to the vast amounts of data in the article, Team C performed a regression analysis on two separate data sets, the independent variable being the mean caliber of bullets from the years 1998 through 2002 and the dependent variable being the percentage of gunshot related deaths. Team C used Microsoft Excel to perform the regression analysis. The data and chart below represents the output from that test:
Year Mean Caliber Mortality %
1998 8.47 8.1
1999 8.35 9.5
2000 8.59 10.7
2001 8.56 8.8
2002 9.16 4.7
Coeffic of determ = .6859
As the chart suggests, through a regression analysis we can determine there is a moderate to strong inverse relationship between the dependent and independent variables. A moderate to strong relationship is determined by the coefficient of determination equaling .6859. This information stems from the numbers indicating the mean caliber size of bullets increases, while the mortality percentage decreases.
Conclusion
In conclusion, a very small percentage of deaths are attributed to gunshots/firearms. The death rate of firearms accidents or firearm injuries is 4.4 percent in the United States during the year of 2000, when the data was collected. Approximately 37.5 percent of deaths were due to homicide and 57.9 percent were due to suicide. The differences do not reflect statistical differences, but the trend may indicate a hypothesis that the suicide victim is resorting to using larger caliber weaponry.
References
Adibe,OO, Caruso, RP, Swan, KG. Gunshot wounds: bullet caliber is increasing, 1998 2003.
“Regression Analysis in Research” (Sect. 4) Retrieved March 17 from the University of Phoenix reSource page at https://mycampus.phoenix.edu/secure/resource/resource.asp
SafetyLit. Injury prevention literature update, p42. www.safetlylit.org/week/2004.

