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This line shows that the increase in x (independent variable) is also associated with an increase in y (dependent variable). Thus, the independent variable postnatal age is used to predict
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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
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Since all of the observations i.e. 88 were utilized for analysis, hence no data point was missing. The range refers to the difference of highest and lowest value in a sample. In this case the range values listed for each
Statistical assumptions are an important aspect of empirical studies. This study, just like any other study, applies some statistical assumptions in order to achieve the desired results. The statistical assumptions are: The mean difference is zero; The data is normally distributed; The variance of the two variables are equal.
The management can discuss the location preferences of the employees, so that they get to work at preferred locations, as far as possible. Another option would be rotation of the
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
-1.99 is significant, in this study because it falls in between the 1 tail percent of 0.025. This is because df is 169 and alpha level is 0.05. The value -0.99 progressively becomes more significant as this value becomes smaller and smaller from 0.05.
The mean support level of the Londoners in support for the “Living Wage” was found to be 66.6667 indicating that there exists support for the “Living Wage” among the Londoners however, it is not full support. Full support would have meant an average of 100 which is not the case as dictated by the figures.
Work seeks to unravel the nature of the lynx data set as encrypted in the R package for statistical analysis. For effective utilization of its features, relevant packages are essential for analyzing and depicting various features of data. In this investigation, the packages TSA, AKIMA, LOCFIT, FTSA, and T_SERIES were specifically very helpful.
If the samples are not related or independent to each other then the pertinent question is whether the variances of both populations are known. If the population variance is known and the sample size is greater than 30,
(Keller, Swaminathan & Sireci, 2003) in this study, two types of items were used and they included multiple-choice items that consisted of 75 items that did not contain any violation of local independence assumption between these items. The value arithmetic mean of the index Q3 reached 0.014, where this value is an indication of non-violation of the local independence assumption between these items.
According to many experienced researchers and experts, self discovery is one of one of the most essential ways of overcoming the research biases, blind spots as well as the cognitive limitations of the researchers. The result of my observation of the photograph has taught me that it is critically important for researchers to openly engage in honest discussions regarding research subjectivity and bias.
Other revised studies have indicated a positive relationship between high income and high health standards within the family settings. According to The National Poverty Centre at the University report, there were 14.1 million children that lived in poverty in the USA by the year 2008. 19% of these children were below 18 years old.
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My main motivation behind this application for admission in your University is my keen interest and experience in the field Mathematics/ Statistics and it will be my next step of the ladder of education and natural progression of my
99% Confidence Interval for the mean value (original cost). Using the normal distribution, as the sample size is large (n = 450 > 30). For 99% confidence, z = 2.576. The true mean value of the original cost of the item is between £86.09 and £87.91 with 99% confidence. 99% Confidence Interval for the mean length of time in stock (in weeks)
Moreover, one needs to formulate a good experimental design in order to arrive at the correct findings and that can be done only when the person knows a great deal
The application of statistical knowledge spans across almost all modern academic and professional disciplines. However, learners in many non-mathematical disciplines have difficulty differentiating the exact tests to apply, despite knowing the kind of results they desired at the end of a particular analysis.
Last two are much more precise in the measurements of data.
Businesses face countless choices everyday and the right decision making is crucial for the survival and growth of the company. Statistical methods and techniques help make the
A correlation test is the most preferred as it will reveal whether there is a corresponding increase (or decrease) in the number of injuries as compared to the number of hour worked. Regression could also be used in place of correlation as it would show how
s very intriguing but the moment I reach data analysis part, my mind simply pushes me to skip it and just read the words (conclusions explained in easy terminology).
The problem is not about one or two people or the ones who simply don’t have that statistical brilliance, it
A correlation coefficient of -1 indicates that the two variables are perfectly related in a negative linear sense. 0 correlation coefficient indicates that no linear relationship between the two variables. Regression analysis identifies the relationship between a
The samples are considered as independent due to the fact that they are extracted from two different populations of students who are studying with two different majors. The population standard deviations of the both the samples are unknown. The sample sizes
Determination of wages and other packages for employees requires excellent communication because most employees view their employers with suspicion. Lauren ought to communicate the full criteria it uses to pay its employees the severance package and extend the same to Western Company employees whose jobs have been severed following the buy-out.
The results indicate that the majority of online shoppers would generally be thrilled if Wal-Mart offered their competitor’s online prices and at the same time guaranteed price matching. The report comes up with a general conclusion that matching competitors' online prices are needed for the company to boost its sales revenue.
These individuals are involved in white-collar jobs and have obtained a high level of education to obtain their positions. The problem is that this population represents a small number of people throughout the world. If LinkedIn has to grow and has to increase the number of members, it has to target a younger portion of the population.
The AHP press unveiled this information based on the clinical trial results presented at the American heart association’s scientific session in 2012. The study was done in the multicenter, double efficacy trial. The trial to assess chelation therapy was a 10-year, $ 31.6 million study involving 1708 participants at 134 centers.
les (predictors) (Wang & Jain, 2003) and their assigned values are identified as parenting status (single, married, or divorced), parent education level (primary, college, or university), parent income level (Less than $20,000p.a., Between $20,001p.a. and $50,000p.a., Between
The study took a sample of 80 patients who were affected by chronic ulcer but had now healed, for the period 2006 to 2009 (Finlayson, Edwards & Courtney, 2011). The data regarding their
A detergent manufacturing company has two plants, one in Florida and the other one in Texas. The type of detergent manufactured from both plants is homogenous. The Florida facility makes 40% of
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The author of the paper states that the sample was obtained through an online self-administered questionnaire as described in details in chapter 3. The respondents were asked a set of 27 questions which were logically grouped around the three topics of interest; Motivation, satisfaction and performance.
health risk is that the standard BMI measure in its application to classify patients as overweight or obese does not directly measure obesity, in the sense that it does not capture aspects such as increased waist circumference.
This essentially is because, although BMI
Two nominal variables: time of year and poplar clone, and one quantity variable were selected. Since the researchers could not establish through parametric means the distribution of the data, they applied the
The net weight loss for each patient was recorded before and at the end of the study period. She then took non-parametric tests on the data recorded to determine whether the length of time a patient exercises
(Nahid & Leila) apply confidence intervals in the study “Comparison of Intelligence Quotient in Children surviving leukemia who Received Different Prophylactic Central Nervous System
Example Library conducted a user survey using a set of questionnaires that sought to determine the demography as well as the interests of their customers. The researchers have used exploratory questionnaires in their research and therefore the data collected is purely qualitative with no need for statistical evaluation (Pickard, 2007).
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Through research, people get more enlightened about any assertion or hypothesis that may have been made without any proof. Most researches are conducted when there is a problem or a general observation which requires validation. In order to conduct any given
According to the available data, the best articles the magazine could feature include real estate, balanced gender issues, and youth related issues. The responses presented in excel as ‘Yes’ and ‘No’ were coded during the analysis phase to
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Statistics have proved that it is true some seats deem to be safer. However, there are a lot controversies surrounding this statement on whether particular seats are substantially safer than others considering the slim probability of plane crashes and chances of having any
The paper contain the question one to question fourteen where question thirteen and fourteen the collected exchange rates will be analyzed through graphs and variance analysis. If this rates fits regression models well, then selected will include only those explanatory variables that give details a significant degree of the variance.
The assumption of the study is that there is a correlation between all the variables and IQ. It also makes the assumption that the mean and the deviation of the population sample is unknown From the statistical analysis
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In collecting data, the study will use stratified random sampling. In an attempt to gather empirical evidence for the purpose of gaining insights about the need for offender programs and treatment before release, the study will need to have first
R program has been used to give the graphical output, as well as carrying out computations. R is an open-source programming language and software environment for statistical computing and graphics. The R language is widely used among statisticians for statistical software development and data analysis.
Question ten and eleven uses the same size but focuses on the attitude of students towards cheating. In this question a questionnaire was used with five options; strongly agree, agree, neutral, disagree, and strongly disagree. The sample of three hundred students will represent what happens in the whole population of ISU students.
There are numerous statistical methods available for forecasting and deciding on the significance of various scenarios. We consider the three techniques of hypothesis testing, parametric analysis and multivariate. These three are most of the time used together since they are just the components of probability analysis.
Doctors are regarded as the most responsible people. They can save lives of patients at any critical condition. Well, the field of medicine and being a doctor comprises other several branches, which define a real and
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