Statistics Essay Examples and Topics
05? To prove or disapprove of our professor's claim, I carried out research on the average proportion of clothesperweek population and analyzed the results/findings using StatCrunch. The variable of interest is the average proportion of [...]
In this paper, regression analysis is performed to predict the relationship between the time series and the time spent watching television each day measured in minutes. This is further supported by the predicted values obtained [...]
The data collected include the total number of fire arms in the US, the number of people living in poverty, number of people consuming alcohol, population between 18-24 years, and unemployment rate. The number of [...]
For instance, this study attempts to model the life expectancy of people on different variables to answer the fundamental question of "how can researchers use econometric factors to predict the lifespan of a person"?
The bimodal distribution is a right-skewed distribution for the mode on the right side is smaller than the mode on the left side of the distribution.
Did the campout event of the company improve the level of job satisfaction among employees? The means the level of job satisfaction among employees who did not attend campout event is 26.
The study period is a predictor variable because it influences the outcome of the exam score. The descriptive table below shows that the average period of study of 80 students is 13.
Describe the basic characteristics of a normal distribution and the normal curve. The probability distribution, p, of a variable in a normal distribution is determined by the area under the normal curve.
Estimating the education level of the population, it can be stated that the largest part of the population has a bachelor's degree with the higher rates of the female population in this category and the [...]
In the window that opens, the needed variables should be transferred to the "Variable" box; the button "Options" permits to choose the required statistics.
A pie chart display of the data shows that the individual country which had the highest number of female tennis players in the 2010 chart of best female tennis players was Russia, with a 14 [...]
A real-world example of hypothesis testing is the comparison of the battery life of Android smartphones and IOS smartphones with similar features.
In reference to the meaning of a confidence interval in the context of problems in statistics, it needs to be said that this tool is often referred to as the value that can help to [...]
The table above shows that the number of male students who took part in the study was 65 while the number of female students who took part in the study was 67.
The following is a set of 100 raw data about brandy sales in Australia measured in thousand liters of alcohol. The frequency distribution and histogram of brandy sales for Australia are illustrated below.
From the information on the graph, it can be deduced that the distance from the town is a factor considered in pricing. This is so because the graph shows that item 46 is the furthest [...]
The study used online surveys in collecting data from the participants of the study regarding the social desirability and comfort of the disclosure.
The first stage is the identification of the level of significance within the frames of which it is possible to identify if the null hypothesis is true.
When the salary is measured with the help of the mean, the highest salaries of top managers and CEO are also calculated in order to present the average, and the final number can be higher [...]
On the other hand, the group with the invisibility cloak reported an average of 5 mischievous acts, a standard deviation of 1.
The following paper provides the results of the analysis of the scores and outlines the methods of ascertaining validity and reliability.
The purpose of this study is to examine the impacts of gender on a teacher's perceptions of the compensations he/she receives, the level of organizational support, and opportunities for career advancement.
In this view, since the study examines the perceptions of the citizens of the Arabian states, a cross-sectional design is the appropriate design for the research.
The descriptive statistics output for the number of live births in England and Wales from 1991 until 2015 is as follows: The pivot table for the data: The frequency table for the data is provided [...]
Only 10% of the respondents preferred variable 0 while 90% of the respondents preferred variable 2. The total number of respondents was 10, and therefore, most of the respondents preferred variable 2 to variable 0.
During the two months, there is a decrease in the number of persons in Abu Dhabi. As such, the number of asthma cases reported is significantly lower compared to those in the other months.
The coefficient of multiple correlation of one means that the independent variables powerfully predict a dependent variable, while the coefficient of multiple correlation of zero means that independent variables do not predict the dependent variable.
To form the real picture of the ads' effectiveness, it is necessary to fix the correlation between examining the ad and the following purchase of the product.
Other research topics included the Israel-Palestine conflict, the war in Iraq, the Iranian system of government, and Iran's relation to the US and the West.
We believe that these data sets will form the basis of a comprehensive data analysis, and the results will reflect the true situation on the ground.
The mean as a measure of central tendency summarizes data in such a manner that it gives an average figure of the data.
The second model shows that the independent variables, parenting style and sibling aggression, and the dependent variable, aggression have a weak positive correlation coefficient.
6734e-50 There is a negative correlation between the change in temperature and the number of asthma admissions in Abu Dhabi hospitals.
In this case, an increase in the value of one variable triggers a decrease in the value of the second variable.
Inferential statistics make conclusions and predictions, about the whole population, basing these on the information obtained from the sample. Similar sample information such as trends can be used to predict the outcome of an element [...]
In the first stage of data collection, the selection of the division manager and six managers was based on convenience sampling as the sample was chosen based on ease.
To use factor analysis to determine the nature of the underlying relationships, we have to use this set of random data as our data are set in SPSS.
The proportion of the clients that answered "Poor" to room quality is 48/200 or 24%. The proportion of those who answered "Poor" to food quality is 51/200 or 25.5%.
The number is generated in a predictable manner and is pseudo random in nature. The generated random number is 3.
Regression, on the other hand, reverses this relationship and expresses it in the form of an equation, which allows predicting the value of one or several variables based on the known values of the remaining [...]
The article under consideration is a work by Geroski et al."Are Differences in Firm Size Transitory or Permanent?" The research question is "What are the differences in grow rates of firm and what is their [...]
A major drawback of this program is that some of the words that are used in the analysis of missing values are specific to the program.
Further, the addition of variables into the model is not done by the software like the case of stepwise regression. From the results of the t-test, it can be deduced that attendance of multicultural workshop [...]
In the paper, it is established that the simple regression is similar to the bivariate correlation except for the bivariate correlation does not separate between dependent and independent variable.
Examples of in which research results would be communicated to other members of the company, and explanation of how the research would be communicated as well as technology that would be used to demonstrate the [...]
The study I chose to analyze in this paper is a multivariate statistical analysis of cigarette designs and their effects on reducing the presence of various negative components within the smoke that enters the person's [...]
The students of class A have achieved a mean average score of 80 during the test at the beginning of the year.
The focus of commonality is significant for the overall analysis for it provides the sum of all correlation values in the component matrix, and thus, it indicates the extent to which the component matrix captures [...]
Since students experience anxiety in the course of learning SPSS, the questionnaire aims to measure and ascertain the extent of SPSS anxiety. In essence, the study aims to use PCA in revealing principal variables that [...]
The statistic is describing the claims by Labour that the NHS uses 500 million a year to treat wounds caused by knife crimes.
In this exercise, multiple regression analysis is carried out to investigate the impact of different factors including Usefulness, Male-Dominated Field, Tutor Attitudes, Confidence, and Age that are considered as the independent variables affecting the Self-Efficacy [...]
The researcher identified the correlational method as the best way to study these relationships and provided three hypotheses to be studied in this research: There is a statistically significant positive relationship between student-teacher rapport and [...]
The duration of advertising, persuasiveness, and gender are three variables that I would employ in repeated measures ANOVA. The duration of advertising is an independent variable that exists on a continuous scale of the number [...]
The control group and the treatment group C violates the assumption of normality caused by the negative skew of the distribution of HDL.
SAS is similar to the Statistical Package for the Social Sciences in terms of capabilities and field of applications. However, the former seems more challenging and harder to learn due to the complexity of user [...]
The null hypothesis clarifies the deficiency involved in the relationship between the forecaster and result whereas the alternate hypothesis illustrates the occurrence of the relationship.
The next thing for generalizing the sample statistics is the calculation of confidence interval which is a range of value derived from the sample statistics and contains the possibility of having the unknown population parameter [...]
The mean, the mode, and the median are the three measures of central tendency that are critical in describing a clustering pattern of distribution of a given data.
According to the developed hypothesis, it becomes clear that a confidence interval parameter of with a random variable of X, the confidence level of p, and the following sample: is called a bordered interval.
The analysis of this scientific work will help to determine whether the overall performance of the paper is accurate or vague and whether the statistical methods used in the article can be considered to be [...]
The problem of correlation between the levels of unemployment and suicide rates has been previously investigated in the research literature. However, the association between unemployment and suicide rates was discovered in the data collected during [...]
This is probably based on the excellence that the tree is capable of offering, as against other neural networks- since the decision tree is a representation of rules.
In addition, descriptive statistics would enable the analyst to evaluate the spread of the marks. While inferential statistics utilize samples from data, descriptive statistics tend to use the whole data.
In order to support his argument, Gigerenzer discusses the 'null ritual' in detail, concentrates on Fisher's and Neyman-Pearson's ideas and associated misunderstandings, refers to the researchers' feeling of guilt, focuses on collective illusions, discusses the [...]
Upon assessing the correlation coefficient of the bivariate correlation, it can be concluded that there is a weak relationship between the two variables.
The importance of statistics is to determine the type of data required, how it is collected, and the way it is analyzed to get factual answers.
The selection of statistical tests and methods of analysis depends on the research questions and purpose, as well as on the type of the collected data.
However, it is necessary to explain to the management of the restaurant the significance of the test. In conclusion, hypothesis testing is an important method that helps to determine the effectiveness of different solutions.
Z-tests and T-tests are widely used in statistics and can be applied to almost any subject of study, from business to mathematics, sociology, and science.
The casual technique is a quantitative method that relies on the interpretation of the behavior of the casual relationship between two variables and the independent variable.
The project is focused on the analysis of data to determine the association between study hours and grades in an educational facility.
It is suggested that in order to compare the repeated-measures ANOVA and the one-way ANOVA, it is essential to compare the power of paired samples t-tests and independent samples t-tests.
05 and the t value is greater than t critical. The question: Is there a significant difference in the Intrinsic Satisfaction for male and females?
Concrete deterioration is a major issue in the construction industry because it reduces the durability of structures, weakens the stability of buildings, causes the loss of lives, and contributes to the loss of property.
This paper is designed to discuss the use of time series analysis in my specialization, criminal justice, in order to measure the rates of recidivism or re-offending.
As such, the paper answers five questions that interpret the quality of the results and the deductions of the findings. First, the paper will explore that type of regression model the researchers of the work [...]
The example to apply is a case of a pharmacy with an owner interested in knowing the time taken in the pharmacy and money spent by every tenth client in minutes and dollars, respectively.
One-way implies that the question only has one independent variable while the measure between groups implies that there are various subjects or cases in every group.
In their article "Hold My Calls: An Activity for Introducing the Statistical Process," Abel and Poling described the specific statistical activity that can be used in the teaching-learning process at the secondary level to explain [...]
After the purchase of the bags, the bags are opened, and the number of each color is recorded under the bag.
The dependent variable of the study is the effectiveness of team members, which is measurable in terms of the number of projects that they have completed successfully in a year.
The proposal outlines the statistical applications of one-way ANOVA, the study participants, the variables, study methods, expected results and biases, and the practical significance of the expected results.
If only the first assumption is not met, namely, in the case when one of the variables is dichotomous, then the point-biserial correlation should be used. The interpretation of this coefficient is similar to that [...]
Thus, to ensure that social and behavioral studies are conducted in an effective and efficient manner, several statistical models are developed to ensure that the treatment of variables results in the generation of accurate results.
In this study, the dependent variable will be the drug efficacy levels, which will be based on the study participant's parasitemia. The purpose of the proposed study will be to determine the efficacy of the [...]
The null hypothesis holds that the feedback program has no influence on the performance of employees. The descriptive statistics below show that there is an apparent difference in the SEM scores before and after the [...]
The importance of the study was to apply a number of methods to study the leadership of groups and the more-important-than-average effect on them.
The dependent variable will be the efficacy levels which will be measured by determining the parasitemia of study participants. The independent variables will be drug dosages of 100mg, 150mg and 200mg.
The measures of central tendency differ in how much use they make of the data, especially of the extreme values, but they are all trying to explain something about where the center of distribution lies.
The similarities between descriptive and inferential statistics are in the fact that these two types of statistics operate the definite data which are the results of the observations or experiments conducted within the definite sample.
Moreover, when persons have to present the solution to this or that question or decide how to act in the definite situation they also use the statistical data on the issue as one of the [...]
Pratt and Cullen noted that the computation of the t-test statistic provides a measure of the equality of the hypothesized mean and the statistical mean, which is expressed as the standard deviation of the difference [...]
The assumptions of correlation for gpa and final: Final and GPA variables are independent. Final and GPA scores are linearly related.
The cycle length will be the time it takes to complete the full cycle of the four indications. The total volume of this lane is 75 cars per hour.
For example, for the typical cases, the mode, the median, and the mean measures are recommended; for exploring the nature of the distribution of the variable, the test of Skewness or Kurtosis is applied; and [...]
Instead, the estimation of the link between the geographical location and the enthusiasm of the staff was rather even in most cases.
The model can be tested for statistical significance, but the most appropriate way to examine the impact of the individual variable impact on the S&P 500 is testing for different beta notes.
On the other hand, the researcher will be required to establish the relationship between the frequency of taking certain meals or beverages and gains in weight.
The alternative hypothesis, on the contrary, represents the positive outcome of one's suggestions, indicating that the relationship between the variables exists.
Marking out the variables in research enhances the understanding of the test that is being carried out. As a result, the researcher is expected to reduce the resulting variability at the end of the study.
He uses the standard approaches in considering this model, enwidening the understanding of the notion and suggesting possible areas to implement the probit model.
The value of gross national income for the country rose between the years 1970 and 1981. This shows that the income generated by the country rose during the period.
Variability introduces challenges in the estimation of the sample size because statisticians can only determine the true variability of a population after conducting a test. The practical sample size is essential to the determination of [...]
The article The Median Is not the Message written by Stephen Gould highlights the idea that statistical information can be very misleading to people who have not been trained to analyze it.
For example, in a variable such as incomes of patients, the best statistics to represent the typical income would be the mean the mean and / or the median.
The means by genders are summarised in the table below. This correlation value was used to determine the nature and strength of the relationship.
For the study, the researcher creates a table with random numbers and uses the sampling frame to assign numbers to everyone in the population.
The goal of descriptive and inferential statistics is to provide summaries of data in a manner that is useful and simple.
Seeing that the ability to change throughout the study can be viewed as the basic feature of a variable, it is reasonable to assume that the subject matter may help identify the correlation between the [...]
Most of the items in the questionnaire used a 5-point Lickert-type scale, and data were analyzed using a descriptive statistical method involving the tabulation of frequency distributions and the development of simple bar charts to [...]
Thus in explaining the two approaches, Burian et al noted that the latter helps the researcher to come to terms with the strategies used to market the company's products thereby exploring approaches and later using [...]
The use of the regression analysis method improves the credibility of the data analysis method because it provides an opportunity to specify the nature of the analysed variables.
The deductive approach of statistics is different from the inductive approach in that it aims at testing hypotheses instead of formulating theories, like is the case with the indicative strategy.
For example, when deciding on the marketing strategy of the business, statistics helps in getting the actual data that can be used to advertise the products of a business.
Creswell proposed, "The theoretical roots of qualitative and quantitative research are in the realistic and the positivistic approaches to science, respectively".
According to the literature review, service quality is measured by the tangibility of the consumer's surroundings which is represented by objects or subjects, the reliability of the service provider, the involvement and interaction of the [...]
It is conversant with the history of the organization and is aware of the details of the organization's goals and objectives.
This therefore necessitates that there is critical decision making in the determination of the method of marketing research to be utilized in a certain circumstance to allow for attainment of the best results possible.
On the basis of these findings, a scholar will be able to form a hypothesis about the factors that impact equity in academic labor market.
The sampling method that is being proposed to ensure that the data collection method for the questionnaire is a link to the survey via the home screen of the SunSmart iPhone application is random sampling.