Statistics Essays

Enzymes immobilized with large particle sizes have a small surface area-to-volume ratio. This implies that a lesser amount of enzyme is exposed for the reaction and therefore the rate of reaction is slow. On the other hand, immobilized enzymes with a smaller particle size have a larger surface area to volume ratio, implying that a larger amount of enzyme is exposed to facilitate a faster reaction rate.

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 study roots to determine how relevant education programs reduce the barriers that hinder women's advancement in their careers. Factor analysis statistically reveals the trend. The study is to reveal whether there are significant gender differences in students’,  industry recruiters’, and educators’ perceptions of factors that enhance and constrict women’s career progression.

The questionnaire designed comprised of a mixture eleven questions of varying types and objects. Demographic aspects of the respondents such as gender, age place of origin and postcode of residence were recorded. Caution was taken in designing the questionnaire to ensure that there was a logical flow of the questions and transition of ideas.

The purpose of the research is to determine the ways to achieve effectiveness (internal) with regards of the operations and the customer satisfaction (results of effectiveness of the operations). The effectiveness is linked with the operations of the

Therefore we can that there was an equal member of the union in the age categories. The satisfaction levels were higher in the male population as compared to the female population. The female population showed extreme dissatisfaction or complete satisfaction. The responses from the male population were more divided. The level of employee loyalty on the other hand was higher with increases in age, income, tenure, and number of promotions. 

Often the data collected is taken directly from the sample; but in some cases, the data is gathered from other sources like medical records, census data, and such other sources.

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

Zero-one linear programming involves problems (Braaksma, et al, 2012)), in which the variables are restricted to be either 0 or 1 for instance, Sometimes, it is evident statistically that

The data illustrated in 8.3, for example, is a clear indication of summarized data through the use of sampling variation and mean to derive critical information such as 23.1 percent from

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.

According to Tom Market the Company Chief Marketing officer, belt tightening strategies are a reflection of lifestyles in each region and

As a result, it improves performance of all members of an organization, as it clearly sets out tasks (Allweyer et al. 9). Additionally, it sets out mechanisms for interactions with individuals and

Statistical decision theory or Bayesian decision theory finds much application in business decision-making. Managers of small and large businesses find it very useful. It is named after Reverend Thomas Bayes. Reverend Bayes was trying to prove the existence of God through the application of probability when he came upon his decision theory.

It is therefore my goal to attain a holistic transformation through quality education. I want study in an enriching academic environment where critical thought, independent scholarship, research and respect for diversity are core values. I am

The author states that data compression is frequently acknowledged as coding. Here, the term coding is extensively identified as a general term that entitles some particular representation of data that fulfills a given requirement. In addition, data compression can be taken as the main branch of information theory.

The use of the interview and observation techniques requires a greater expertise on the part of the evaluator and a large amount of time relative to the use of rating scales and checklists (Merrell & Harlacher, 2008). The

porter considered a random sample of 725 votes from a population of 12,457 and recorded 338 votes in favor of an issue on the ballot, the 95 % confidence interval is the set of proportions in the range of 0.4299-0.5025. The reporter can claim that between 42.99 % and 50.25 % of

The process to boost employee morale can be characterized by either success or failure, a scenario that can actually be tested. Increase in employee morale translates to improved employee performance, and consequently enhances operational

The analysis can be used by the manager to study if there a significant difference between gender and intrinsic job satisfaction in the company. This would enable the manager to make a plan on which gender to recruit and to plan for any training. Null hypothesis: There is no magnitude differences between Position mean and intrinsic mean (Ho); µ2-µ1=0.

(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.

The 182 data points are sufficient enough to conclude that the distribution is negative skewed (-0.8175339). The reason for describing life expectancy as negatively skewed is because skewness can be measured numerically by calculating the third

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.

Age is also positively correlated with both pressures, however, the statistical significance is quite low p=0.659 and p=0.062, which illustrates

A focus will be put on fear factors that may have unsettled them enough to give cause to leave. This group's hypothesis is that it would push residents, especially families, away from the city.  Despite the "uniting" of the country post-9/11, victims closer to that area probably have more variables to consider. 

Table 1 shows descriptive statistics for both rape and robbery. The total number of observations is in the column “N”, which shows that 20 observations were made for both rape and robbery. The mean for rape is lower than that for robbery,

Descriptive statistics were not appropriate because it considered only the features of the group being studied (Agresti, 2007). 3. Other statistic that could have been used in describing the length of labor is categorical statistics distribution (Agresti,

This establishes significance of factors that employers consider in determining wage rates to employees, for possible variation of the factors towards increased pay. Employers, however, seek to minimize their costs and this establishes a limit to maximum wage rates that

This edge over the competition is both long and short term. Although every department’s policy is equally important but human resource policy is something that is of

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

An Anova analysis was done with lifestyle as the dependent variable and social life as the independent variable. Anova analysis was done to determine if lifestyle and social life were statistically significant and if

One of themethodsusedwasthe quantitative analytics thathelpedassesstherisksandopportunitiesinvolved. Theoriginaldatawascondensedusingstatisticalstandpoint into 30 points that representedthe 105 points. In thefindings,

The reporter can say that the issue on the ballot is popular among a range of between 42.99 % and 50.25 % of the population. He must be precise to state the confidence interval within which the claim is made. However, he cannot be specific as

no significant difference between the average punishment assigned to the defendant by witnesses and non-witnesses based on the evidence presented in the case. The results of the study warranted the rejection of both hypotheses. In testing the hypotheses, a 95% confidence

It is evident that employees will become healthier if they use the gym regularly, but it is unknown if gym time provides a better mindset when it comes to work. To show a difference, there were two groups in this study.  All of the subjects in the study worked at the same company, but each group was based at a different office. 

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.

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.

representation of seasonal components which have effects that are reasonably stable in regard to time, magnitude and direction in systematic influence derived from the calendar Definition: It arises from fluctuation in the short term in a series which is neither predictable

The author of the paper states that the variability of the data would be looked into by first calculating the standard deviation for each level of absorbance with Minitab’s preprocesses response command. Then analyze the variability in the designed experiment. Then the results would be interpreted.

It is used for both grouped and ungrouped data and also it is works best when there are no outliers in the data. Median is a measure of position which is represented by the middle value from an ordered set of values, it is used when the data is skewed. Mode on the other

Statistics is an important aspect as it allows effective communication. It enables presentation of facts in an accurate definite form that allows proper comprehension of the communicated statements. With exact facts, it is more convincing than just vague statements. It

The value can be more than 1.0 to show that a stock is more responsive to market changes or simply riskier than the market. The value can be less than 1.0 which indicates that the stock is less responsive to market changes (or is less risky). The

d more than one position, a president can be selected from 19 members, a vice president can be selected from remaining 18 members, a secretary can be selected from remaining 17 members and a treasurer can be selected from remaining 16 members. Therefore, Decision: Reject H0, as

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

There are various variations of hypothesis test such as applications utilizing population mean, proportion or variance. Piggy Bank currently has a couple of options which the bank needs to choose the optimal choice to implement an incentive for its new credit card product. The choices the bank is contemplating are cash back on online purchases.

The author states that this data is then stored in a secure storage device as it waits to be processed into meaningful data, which is achieved through the processing of information. Manipulation of the data input is with an application program in order to obtain the desired output through the extraction of diagrams, reports, and tables.

The objective of the researcher is to use the data set to test the impact of music on the growth (height) of plants. In this problem, the dependent variable is the height of the plants. The independent variable is the exposure of the plants to music. The independent variable is a categorical variable that assumes 2 values that is whether plants are subjected to music or not.

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.

After incubation for 48h at 37oC, the SD value is 0.37, and for the group Motility assay for the control organism, the SD value is 0.71. The group Motility assay for control has the highest SD value with 0.71, and the group Motility assay: After incubation for 48h at 37oC, has the lowest SD value with 0.37.

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.