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In geographical areas like Europe and America, there are a vast variety of people residing, who categorically belong to various social groups. Very often the behaviors of these different people are explained by the common characteristics of the social groups they belong to. Here comes the concept of stereotyping.
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The investigation is carried further by evaluating factors other than government spending, which affect healthy life expectancy. The dataset was sourced out from the websites of the World Health Organization, Organization for Economic Co-operation and Development, and Yale University. A total of 25 variable were included in the dataset.
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Table 1, which was used to interpret the Pearson coefficient of correlation was excerpted from a couple of books in statistics (Monzon-Ybañez, 1993; Portney and Watkins, 2009), while the rest of the tables were researcher-devised. All the tables used in the interpretation are shown in the appendices.
The author shows the frequency distribution for bivariate data. There are two variables Health Status and Social Class in the above contingency table. It appears that Health Status is a dependent variable and Social Class is the independent variable. The level of measurement for variable Health Status is ordinal and for variable Social Class is nominal.
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This static group comparison design has some limitations for the study in the problem stated above. In the first place, the non-identical pattern of respondents may not be relevant as all of them are CAD patients. But they may not be of equal health status each having a different problem both before and after their discharge.
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The author states that Systems Engineering is associated with conceptualizing, design, development, testing & make-live of large scale & complex engineering systems for various industrial & software applications. It comprises the complete life cycle of building complex engineering systems using the style & methodology of an engineering manager.
The author states that if administrators and policy-makers would take into account both the benefits and the drawbacks of standardized testing, they could work to create educational policies that take advantage of the data that standardized tests offer, while not allowing test bias on test scores to detract from our student’s education.
Interpretation: Since the Chi-square value is 0.144 with probability 0.986 (>0.05) we accept our null hypothesis and say that there is no association between interval time period and the effect (cure) at 5% level of significance. I.e. regardless of the interval time period the cure is at the same level.
The author states that the system which existed in RRA, a leading recruitment agency, was to concentrate more on the number of candidates recruited without any reference to the quality standards. The need for a change was felt, as he could see the company losing customers while handling the recruitment of manager for a welding company.
Results of the ANOVA with an F-statistic of 0.475 and a p-value of 0.823 (which is greater than α = 0.05), revealed that there are no significant differences in the levels of recidivism of the detainees when they are arranged according to their ages. These results signify that no specific age level had higher levels of recidivism that the other age levels.
That major league baseball teams that perform well during a particular season have higher attendance. Evidence and statistics will be introduced that will lend credence to this hypothesis. The spreadsheet from which the data used in support of this hypothesis is displayed in this paper's abstract and contains all relevant information.
A distribution curve that is not symmetrical is referred to as skewed or asymmetrical curve and skewness is a measure of a distribution from symmetry. A probability distribution is said to be positively skewed if the mass of the distribution is concentrated on the left of the figure or if the largest portion of data is below the mean.
The data so obtained should give you a clear picture of what relationship exists between any two. Then make a plan to obtain the information between the two and screen the data and then calculate the regression equation and make proper transformations so that you can obtain the best line of fit between any two variables under consideration.
The regression results indicate that the linear equation for the relationship of cost to taste perceptions is as follows. This means that for every increment in the cost value, there is a corresponding one unit increment in the respondents’ taste perceptions. This equation may be used to predict the taste rating based on a cookie’s cost.
The questions in the questionnaires can be of two types: open-ended and close-ended. Open-ended questions are targeted to get obscure information from a person and the analysis on the questionnaire is done on the basis of the answer to the questionnaire. Whereas closed-ended questions are targeted questions in which particular information is asked by the person and a pre-analyzed answer sheet.
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The author of the paper states that there are two strategies of investment analysis used to study share price performance, namely fundamental analysis, and technical analysis, both of which aim to guide an investor into making the investment decision that will generate the highest return.
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The Human Resources Managers are the primary determinant of quality in research and higher education. Therefore, the university collaborates with this department to hence human potential both quantitatively and qualitatively.
Distortion of statistical data and handling for a particular purpose that can be defined as fraud in some situations is perpetrated by people who are not statistics professional. Often, it is common for statistical information presented in magazine and newspaper to be exaggerated due to the sensational nature of these media.
The frequency distribution for a variable consists of possible values for that variable and a count of the number of occurrences of each group of values. Consider the following grouped frequency distribution for a collection of exam scores. Typically, a grouped frequency distribution is portrayed using a histogram.
Classify the following variables using the following criteria: quantitative or qualitative, discrete or continuous, nominal, ordinal or interval / reason: Examples
George has to decide between the possibilities of High, Medium, and Low sales of the grandstand seats to the concert as the 20000 standing area tickets are guaranteed to be sold. This choice will affect some shirts to order to meet the demand. Between the three order sizes, George has to make the order size to meet the anticipated attendance.
This paper provides an overview of the impact of Internet use on the amount spent to sleep among teenagers. The purpose was to examine the relationship between teenagers’ usage of the Internet and the amount of sleep. 50 teenage students were selected and quantitative data in regard to the amount of time they spend on the internet and sleeping was gathered.
A confidence interval is an interval estimate combined with a probability statement used to express the degree of uncertainty associated with a samples statistic.
Rumsey, D., 2005. Statistics workbook for dummies : [practice on hundreds of beginning-to-intermediate statistics problems ; review key statistics concepts ; get complete answer explanations for all problems].
Based on the positive value of the gradient, when X increases, Y also increases. The equation of the line of best fit is given by Y=1.4954X+11.847 For, X=1 Y=1.4954(1)+11.847=13.3424
The United States Census Bureau provides authoritative information on pertinent geographic and demographic information in the country across different time frames. The site of one of the most reliable sources of information, especially in terms of determining the population of a state, county, or city.
Statistics is mainly the collection data, analyzing and deriving correct and reliable conclusion from the data. To accomplish these, statisticians are bound under by the Doctrine Statement, which is combined with ethical theories. The Doctrine Statement portrays the essence of God and the expectations of an individual.
Dell's supply chain is today's model of technology-based producers because of its purposive approach to handling supply and related issues. To meet the growing competition, Dell Chain has established a direct sales approach. In this approach, the company uses a number of platforms to ensure that they reach the customers directly and avoid wholesalers and retailers.
The relationship of these samples is that the pretest has corresponding posttest of the students.
The problem involves determination of the performance of the students in terms of scores.
The author of the text focuses on the data on GDP per capita for European Union countries. Namely, it is stated, it is investigated to establish reliability between the World Bank and the Central Intelligence Agency (US) as information sources. According to the World Bank, the European Union had a GDP of $ 17.96 trillion and a population of 507.0 million in the year 2013.
king= coefficient of calorie intake= coefficient of vitamin intake= 0, No significant relationship exists between plasma retinol and age, sex, smoking, calorie intake, and vitamin intake
Data on quitelet, calories, alcohol consumption, cholesterol consumed, Dietary
Subsequently, the present research implemented t tests, nonparametric tests, and regression analysis in examining potential determining factors of these elements.
A regression analysis was carried out to determine the impact
If a person bought 1 share of Google stock within the last year, the probability that the stock on that day closed at less than the mean for that year is 0.50 (or 50%). This is because the normal distribution is symmetric about the mean and the area below is equal to 0.50 which is the mean divide the area exactly half on both ends.
The most important assumption for the OLS model is that the dat set need to follow a normal distribution. We therefore had to check whether our data set followed a normal distribution. It is clear that the data seems to come from a
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It also investigates whether greater experience (in terms of length of time spent in the war zones) raises the likelihood of developing PTSD. A review of the literature surrounding the prevalence of PTSD reveals that military personnel is indeed more likely to develop the condition, while women have a higher prevalence than men.
The necessary transformation in this regression process is the binomial transformation using “mylogit” function. The most important variable in this case is c.vol, because the estimated volume of prostate cancer is the
From the table, we observe the coefficient for the is 0.36488; this implies that for any unit change in we would expect the dependent variable to increase by 0.36488. The coefficient for the explanatory variable is significant at 5% significance level. We can
There is 95% confidence that the number of employees average is between 22.24 and 31.36.
The data consisted of ten points and was normally distributed. The lowest reported crime rate was 1.35 and the highest reported rate was 4.15. average crime
Since crime affects each and every one living in the city, the research question would be of interest to many students and the local people, particularly the residents of the affected cities. Students cannot comfortably
A null hypothesis refers to a hypothesis that a researcher strives to either reject, disprove or nullify. It is the opposite of the alternative hypothesis, which refers to what the researcher thinks to be the cause of the problem being studied. The research question posed through the null hypothesis aims at understanding whether the outcome of a study is a result of the independent or dependent variable.
The author states that the research purpose will include the assessment of employee’s skills and competencies as per the job requirements and the analysis of the reward structure and their effectiveness on the job satisfaction, motivation and job performance of the workforce. The study is focused on discussing the suitable and required research methods.
Additionally, this phenomenon was not new to the other OECD countries, globally, despite the fact that women caught up with men in the labour force participation.
Therefore, the survey focused on measuring the gender
Graphs are statistical tools that reveal the relationship between two or more research variables, each measured with and plotted along an axis at right angles. Graphs take different types and shapes depending on the researchers’ objective and the type of data being presented. Graphs are important tools in transforming or communicating business data to relevant users.
A subject matter in such a case may be an event happening in their environment applications within their learning classes. During hypothesis testing the researcher allows themselves a confidence level as they are not 100% sure of the event happening. Hypothesis testing is a part of our decision-making procedure that makes an individual anticipate
Every year a number of cases are handled by judges in Jackson County. Some of these cases are appealed. However, some of them are upheld. In connection with this, the main aim of this study was to investigate how the judges perform based on the number of cases appealed and the number of cases reversed.