Statistics Essays

The simplest way to find out the nature of the relationship between any two variables is to form a scatter diagram. In the present case, the objective is to find out how output per worker in the mining industry is related to the number of working hours and the level of earnings. Two diagrams can be used to find out what kind of correlations exist. 

3. You will also need to submit the SPSS Output files showing the analyses you performed in SPSS to compute the answers for related questions. ***THIS MUST BE A .SPV file. I only have the newest version of SPSS. .SPO files do not open nor convert in my program. Looking

The population under study comprises of 200 workers but only a sample of 30 considered for the study. The study was effective since the population at the company keeps growing. Based on the

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 I came across someone who did not smoke, I simply moved onto the next person. The graph above shows the results of the survey that I conducted with male smokers. On average, I found that men smoked 5.73 times per day (172 collective times divided

“For maximization problems like this one the constraints can often be thought of as restrictions on the amount of resources available, and the objective can be thought of as profit. Then

Additionally, the correlation should highlight the possibilities of an error for studies of similar nature. According to Rubin (133), statistical power verifies power calculations by eliminating the

The discussion is based on the hypothesis that Cadillac has retained control of the segment of older men and has lost the other segment to its competitors and that this is

The dependent variable used in the paper is the number of robberies reported in the United Kingdom (UK). The variable is of great interest since robbery (crime) is a great threat

Considering the growth aspect that each country is faced with, one needs to understand the different approaches that each country employs in the management of their affairs leading to better economic performance. The economic performance of any economy is rated through the study of the Gross Domestic Product GDP.

The aim of this analysis is to estimate the parameters related to the economy, demography, and social life of the countries. The data from 100 counties represents the information about the following indices: average lifespan, average number of people per household, median household income, and average number of people per household. The provided data permits us to estimate each parameter, as well as the relationship between them.

This is achieved by transforming scores in a normal distribution to z-score in what ends up to be a standard normal distribution. Apart from showing a scores relationship to the mean, the standard scores

The choice of the sample size should never be biased and must be very fair and all-inclusive (Kothari, 2005). The process of determining the sample size that will produce valid and acceptable results with respect to the entire population involves a number of statistical calculations and inferences, popularly referred to as the sample size calculator.

If the confidence level is 95%, then in the long run, 95% of the confidence intervals will contain population mean, μ and 5% will not contain μ. The large p-value of .157 indicates

f host countries in the international market, it is critical to weigh the demographic factors that will have an impact upon a given set of consumers in understanding their viability as targeted markets. Recognition and analysis of demographic characteristics of consumers in

As a result, either it can make the height of the bar correspond with the frequency or width of the bar broadens to the actual limits of the score interval. Considerably, descriptive statistics is essential with describing the relationship between variables by

With a perfect correlation r2 is equal to 1 indicating that the proportion of explained variation is 100%. This implies that the variable

Under the observational study, there are other sub-types such as case-control, cohort, and cross-sectional surveys. Case-control is a design that uses two groups (the case and the control) to find out the answers to the research question, for example, in this study, the case is the transgender people (Bowers 75). 

I am able to work well because I fully understand what kind of job I am doing. I am able to easily understand the data that I have been provided for, and I easily evaluate this data to create a complete report of the data and give clear and viable conclusions about this data. By using statistics, I am able to make principled decisions.

When genetics is not brought into the picture, obesity is basically as a result of an imbalance between caloric intake and

Sites such as Twitter, Facebook and YouTube were imperative in implementing Ford’s online marketing strategy. Ford spent 25 percent of its resources allocated for advertisement on digital advertising in 2009 and 2010.

The author states that one of the researches claimed that Vitamin E is a proven antioxidant and further claimed that it might help in fighting cancer and heart disease. On the first look, we may say that the claim would be true and we are more likely to believe in it. But, we should also consider that the researcher is implying.

An increase in advertising budget has always increased the levels of sales over time. Forecast in revenue generated or sales would be: This means that if the company is invest more in advertising budget, an approximated 2,294 million USD

Whereas it is true that there are differing shades of bias and that Ms. representation of data is oftentimes done without a malicious intent, or indeed without any intent at all, the article in question provides the reader with a core example of the d n which truthful numbers can be displayed and inferred from incorrectly.

Accordingly, they are the independent variables. The data corresponds to the average 1980 values calculated for fifty eight (58) counties in the state of California. Based on this fact, the sample size is 58. Poverty refers to the percentage of families living below the

The independent factor is often classified as variable X. The rule of thumb is that increase in some independent factors may directly lead to the increase in the dependent variable outputs (variable Y). For example, an increase in the salaries of people will lead to

I am passionate about studying at the University of Toronto since its geographical location is of much interest to me as I enjoy the climatic

there exists a disparity in regard to overall customer satisfaction between the female and male participants (male participants are more satisfied compared to their female counterparts). The average overall satisfaction level was found to be far below the management’s

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.

Tests of significance allow researchers to make inferences about the general population. The type of test used is however dependent on the type of data that is being used. According to Driscoll and Lecky (Article 6 p. 124) once the distribution of the data is known then the researcher is able to determine whether the null hypothesis should be tested using parametric or nonparametric methods.

An image of a decision tree is illustrated below: The example you mentioned about Gerber products was very insightful and interesting. Managers can use decision trees for a wide variety of applications. As you mentioned in your response a

The number of calories per variant of the cheeseburger or doughnut will certainly vary. In the case of the beer and the soda, the type of

The intelligence quotient score of males and females differ due to a lack of similarities in the different gender cognitive and behavioral conditions. More so, males have good intelligence quotient scores on things about mathematical questions whereas females perform better on questions on reading and verbal skills.

It can be viewed as the expected outcome E(x) of an event x, such that if the measurement is performed multiple times, the average value would be the most common outcome. The sample mean is the average value of a sample, which is a

references and it was a very clear piece that illustrated their point very well, which was that children, especially babies should not be removed from their birth parents until all recourses had been exhausted. If they are than the process should be completed before the infant

It can be difficult to evaluate the influence of such unconscious desires and motivations on behavior using objective techniques like self report inventories or checklists

The three parameters are product quality, service quality and the environmental conditions. Mastery shopping as it is in this study gives the first hand observation, which is important in

1.131668626 depicts that the probability of extreme values is less than for a level of democracy n and the values are broader spread around the mean of 32. 03448276 (Goodwin, 189-239) The independent variable is the level of democracy whilst dependent variable is employees.

To gain a better understanding, the researcher states that we need to look at and review previous literature on the subject of e-commerce and understand the various gaps and strengths we can utilize to conduct future research. The researcher focuses on comparing the two quantitative research analysis methods, that are the EFA and PLS SEM.

The variables are: the gender of the student, the State in which the student comes from, the number of hours the student takes to prepare for a Mathematics test, and the scores obtained by the student in a Mathematics test. Data were collected both from the exam registry and one on one with the students. The registry provided us with the student's scores.

lawed findings resulted to unscheduled drop in patients every day and corresponding occurrence of no-shows thus compromising the prevailing list that were mainly based on the patients scheduled on the past days. Print material is more credible than internet material because

The output of the variance analysis provided a meaningful relationship between the mother’s working status and the perceived attitudes of the parents [perceived loving mother: (F(1-279) = 7.601, p < .001), perceived punishing mother: (F(1-279) = 28.288, p < .001), perceived loving father: (F(1-279) = 42.403, p < .001), perceived punishing father: (F(1-279) = 11.689, p < .001)].

e models are usually applied, which are pegged upon the bank’s previous performance, and on discovering the fundamental characteristics that could be useful in establishing the prospects of new customers. Apparently, it is usually essential to make the assumption that the

This paper explores CAPM analysis by using one market index alongside a list of ten companies from the mining, food and insurance industries. We collected weekly data from three sample periods. That is, from January to December of 2006 - 2008, 2009 - 2011 and 2012 – 2014. Our choice of firms and industrial sectors guaranteed high market capitalization.

From the viewpoint of demand and supply, the six plants are considered as supply sources and three waste sites are demands sites; both of them have limitation, which is expressed as a quantity that can be supplied and stored. The

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

What is the approximate probability that at least 7 rejected boards will be produced next week? According to the Relative Frequency Percentage Chart, we can calculate the percentage frequency of at least 7 boards to be rejected to be 95%, as the percentage of occurrence of less than 7 rejected boards is just 5 %.

There was a tremendous improvement in the President Clinton’s administration although he was not able to eradicate food donation dependency of the poor. The government strived to shift the anti poverty policy to work related concepts that saw the

It is a score arrived at after taking a set of standardized tests, and it acts as an indicator of academic prowess. People with scores under 70 are said to be mentally retarded while those with scores over 130 regarded as having a superior IQ (Boeree, 2003). The

B. Choose a set of values forSqft, Beds and Baths that you will be using to predict Price for a hypothetical new house on the market. These values of Sqft, Beds, and Baths should be somewhere in the range of the observed values in the data set,