ICT Mathematics Project Essay Example | Topics and Well Written Essays - 1250 words

ICT Mathematics Project - Essay Example Averages The mean, median and mode are the measures to determine the central tendency of test data. As the data sets are not grouped the mean is achieved through summing all values (x) of the test data and dividing by the total number of values (n) i.e. 500. Similarly the median for ungrouped data is estimated by finding the middle value of the test data when arranged in ascending order. Mode for ungrouped data is found by spotting out the most occurring value of the data set. In this case, mode for house is 146, while that for car is 0. Table 1 Mean, Median and Mode of Raw Datasets House Car Mean 354.174 276481.878 Median 359 217174 Mode 146 0 Using mode we can know which value mostly contributes in the mean value estimated. Standard Deviation and Variation Mean, median and mode give limited information about the data. E.g. two data sets having the same mean may be broadly apart in their value from one another. So, the measures of Standard Deviation (s) and Variation (v) were used t o estimate how far each value of the dataset is from the mean of the dataset. The high standard deviation and variance values of the car data indicates the wide spread of data from the mean. The relatively smaller standard deviation and variance value of the house indicates that the data lies relatively close on either sides of the mean as compared to the car. As the data sets are ungrouped, the formula used for estimating standard deviation was: Squaring the value of standard deviation gives us the Variation. Table 2 Variance and Standard Deviation of Raw Datasets House (in 10,000rmb) Car Variance 39872.45172 69623323280 Standard Deviation 199.6808747 263862.3188 Standard Deviation and Variance is used to understand what a normal value is for a data set. For example, using the mean value of House from Table 1 (i.e. 354) and considering the above table, the value of 199 indicates that all data values that generate SD value as 199 are normal values. Any value outside this range is co nsidered as an outlier i.e. House value is either too low or too high. Range and IQR The mean, median, mode, standard deviation and variance are not able to indicate the spread of the data. So, Range and IQR are two measures of spread. Through range of house and car, we would know the difference of the lowest and highest values. In case we wish to know the median of the middle 50% of data, we would use the Interquartile Range. This specialized version of range would tell us the difference of the middle values of the first and third halves (25th and 75th percentile) of the data that is arranged in ascending order. Table 3 gives the range and IQR of the datasets. Table 3 Range and IQR of Raw Datasets    House Car Range 689 998897 Q1 180 72017.5 Q3 515 339674.75 IQR 335 267657.25 The value of Range of car tells us the difference of the lowest and highest value of the entire data set. IQR, on the other hand, provides us with the range of only the middle 50% subset of the dataset. Diff erence of the two measures from Standard Deviation is that as SD considers all data points, so the effect of any outlier data points is accounted for as well while estimating the mean which is undesirable. With range the spread estimated is intended to include the outlier data points. With IQR, as only the middle points of data portions are considered, the extreme or outlier data points are ignored, unlike the standard deviation. Scatter Plot of Raw

Evidence on learning contract Essay Example | Topics and Well Written Essays - 3500 words - 1

Evidence on learning contract - Essay Example Whether it had been a school project or a week of volunteer service at the hospital, I have always strived to improve my technical expertise rather than pay attention on the purpose for such things. This has resulted in a downside for me. I may have performed well in the start but over time I lost the zeal to be on the top. I did not perform as well as I had used to. For a person who used to graduate amongst the top ten in the class, I was suddenly facing falling grades. I could not understand my problem in the start. I used to ponder if it was the increasing difficulty of the course that I studied that was pulling me down. My falling grades discouraged me. I started to lose interest in studies. I did not have the same passion for improving my technical knowledge as I did so in the past. I also started to pay less attention to my studies. I would delay working on my assignments in contrast to the responsible behaviour I had shown in the past in submitting my assignments on time. Also , I became less attentive in my classes. This attitude continued for months and eventually years. It became an ingrained habit- one that I could not get rid of despite the negative impact that it had on me. It was not until I attended a class on self-motivation some time back that I came face-to-face with my demon. The class was an eye-opener for me. In the recent years, I had always struggled with deadlines and being punctual in my class work. Home assignments, for which we were given several days, and sometimes weeks, were done by me a day or so before their deadline. Whenever I set deadlines for the submission of my work, I defaulted them, mostly because I gave my social and family life priority over them. When I did not have a pressing deadline to meet, I used to slacken off and spend most of my time going to the cinema, hanging out with my friends, going out to eat and playing football. Studies were not my first

Writting health care paper Essay Example | Topics and Well Written Essays - 750 words

Writting health care paper - Essay Example Looking at the financial statement and the type of assets the MCMPC owns gives an impression is MCMPC is in need of further strengthening its finances in order to take on the competitors. The key features are; Strengths †¢ No long-term debt, that implies company can better exercise its options in expansion and diversification. †¢ MCMPC used its financial resources to open a new department, used one million to set up the cardiology department †¢ Over the last 20 years MCMPC has seen consistent growth and its revenues reached $22 million in 2007 with good profit margins. Weaknesses †¢ Despite operating for the last 20 years, the organization is not yet large enough, and has its presence at limited locations only. †¢ Company scores poorly on the management of HR. For quite some time, company is not able to recruit specialists and subspecialist because while some are associated with competitor company Innovative hospital or there are some who are not impressed by the leadership skills of Dr. Balko. †¢ Since the year 2008, the balance sheet of the company is in red, with projections for 2010 also pointing towards a loss. †¢ MCMPC had to use cash to setup cardiology department, which in turn resulted in poor showing on financial figures and ratios. The current ratio was the only part of the statement that was above standard Not having enough cash for short term debts or emergencies is a gross management shortcoming 2. Competencies: It indicates the skills that the employees or physicians of MCMPC offer. Strengths The healthcare company is able to provide urgent primary and specialty services in areas of its presence. Caring and accommodating staff An excellent physician in the form of Dr Balko Weaknesses Company lacks specialists and subspecialist necessary to ensure uninterrupted services to its customers. Company not having strategic tie ups with other companies like its competitor/s Lack of discipline amongst staff. For example, no prescribed uniform for the staff, no regular staff meetings, lack of any formal management structure for decision taking, questionable decisions being taken by the Director of Operations who happened to be Dr. Balko's secretary in the past Office premises appears sloppy at times 3. Capabilities: Having the resources and the competencies to create a strategic plan that can allow the organization to see what they are able to do with what they have. Strengths Open long hours and keeping good relationship with patients. Dr. Balko stays late to care for his patients. Staff attitude quite accommodative, caring and responsive towards

Written Assignment Questions about Orgamisation Management Essay

Written Assignment Questions about Orgamisation Management - Essay Example He implies that there should not only be one beneficiary of an organization saying that both the employer and the employee must gain a certain level of benefits that would be commensurate to the effort that both employee and employer has put in. His main objective was to increase productivity of the workers. He noticed that workers had their own way of doing their work even without any specific instructions on how it should be done. This discovery led to the conclusion that if the employees are left to their devises it made them lose efficiency and that they were not maximizing their abilities. He then introduced a solution of having supervisors to teach and help the workers do their work the right way. He further analyzed the actions and responsibilities that are essential in any job within the organization and developed processes for the jobs could be done in the most efficient ways possible. With the improved processes, the job requirements were coupled with the training of the workers and the support of the supervisors. They come in the type of right direction, assistance and incentives. With this, he included four principles guiding actions. First of the four principles is develop for every job a â€Å"science† that includes rules of motion, standardized work implements and proper working conditions. The second principle is to select worker with the right abilities for the job. The third is to carefully train workers to do the job and give them the proper incentives in cooperate with the job â€Å"science†. And the last principle is to support workers by carefully planning their work and by smoothing the way as they go about their jobs (Schermerhorn, 2007). The first principle says that any job should have guidelines of how to do implement the job. An example of this is in a fast food establishment, each of their burgers have a different way of cooking but a method was introduced to

Distillation- Gas Chromatography Investigations Lab Report

Distillation- Gas Chromatography Investigations - Lab Report Example In the case where there are two compounds with a vast different vapor and pressures, then the two compounds can be separating through the technique referred to as simple distillation. In this case, simple distillation involves warming a mixture so that the liquid with higher volatility vaporizes first. The vapor of this liquid substance is then collected in a separate flask for purposes of being condensed back into liquid. However, for mixtures of compounds having same boiling points, a simple distillation would be performed multiple times or a fractional distillation would be applied over its length. In essence, fractional distillation is often used in separating mixtures of liquids that have a boiling point that are quite close to each other. Fractional distillation constitutes a long glass tube often packed with either ceramic or glass material allowing the vapor to vaporize and condense a number of times in the course of traveling up the column. Moreover, the condenser (fractiona ting column) is packed with these materials purposely to help increase its surface area. This is based on the principle that whenever a solution gets distilled in fractions, it goes through various re-distillations that help increase the purity of the product at the end of the tunnel. As liquid gets heated, vapor starts rising. These vapors condense when they come into contact with the fractioning column cooler surfaces. Continued heating of the distillation liquid leads to the increase in the rise of the vapors. The condensed vapors within the fractioning column re-vaporize hence moving up the column. Repeating this process several times causes components with the lowest boiling point to reach the top of the fractionating column first, which is the collected in the collection vial. Other components are collected following their ascending order of their boiling points. This process is applicable in the fractional separation of mixtures having multiple liquids. For instance, crude oi l is often separated in towers which are one hundred and fifty feet high. In this respect, more than 100 different components get separated from two thousand barrels of crude oil each day. Equipment or Materials In this experiment, the set of apparatus included 3 glass vials, Crystallizing Dish, Ice Steel wool, Microscale kit, Boiling chips, Hot plate, 100-mL beaker, Mixture of organic liquids, and Digital thermometer. Procedure In this experimental the set up was carried out in a hood. To start with the distillation, apparatus for this experiment was set up. Using scintillation vials or a 10 mL graduated cylinder, the distillates were collected. 10ml of ethyl acetate, and 10mL isoamyl acetate were obtained and transferred to the 50 mL round-bottom flask. Then the stirring bar was added to the flask with the stirring function being activated during the process of distillation. The stirring bar acted as a boiling stone and was added to help prevent bumping. The warming of the flask w as done making sure the distillate starts being collected in the graduated cylinder. At this instance, the temperature of the vapor when the first drop of the distillate started being collected in the cylinder was recorded. This was done making sure the thermometer was well positioned. The plate was adjusted in making sure the collection rate of the distillate was approximately 1 drop per second. The temperature was recorded after each mL of the distillate

Lab report Essay Example | Topics and Well Written Essays - 1000 words

Lab report - Essay Example The method of tensile testing is conducted by a ‘tensile testor’ in which the test specimen is clamped and loaded and subjected to a tensile force until the point of failure. ‘Stress-strain curves are an extremely important graphical measure of a material’s mechanical properties’ (Roylance, 2001). Stress is defined as the force of resistance offered against the deformation and Strain is defined as the ratio of the change in length to the original length of the member (Ramamrutham, 2003). The stress-strain curve for the specimen is an important method of characterizing the behavior of the material and adjudging its suitability as a material for any function. Almost all the materials, obey Hooke’s law in the early portion of the curve i.e. at low strain which states that stress is proportional to strain with the constant of proportionality being the Young’s modulus, E: Stress = Strain ? Young’s Modulus. As the strain increases, the linear proportionality comes to an end at a point termed as the proportional limit and marks the beginning of the plastic phase rearrangement of the specimen. Plasticity requires molecular mobility and materials lacking this mobility are usually brittle rather than ductile. â€Å"Polymeric materials behave both as viscous fluids as well as elastic solids. They are viscoelastic materials† (Koustos, 2002). The stress-strain curve of a polymer is different from those of other materials. The critical point in the stress-strain curve is the yield point beyond which the material enters the plastic deformation state. Experimentation The experiment was conducted to obtain the stress-strain curve of polymer samples and study their behavior under the application of tensile force. For this test, polymer samples were loaded and clamped in the tensile testing machine. The tensile testing machine that was used was Instron 1026. The tensile testing machine pulls the sample from both ends an d measures the force required to pull the specimen apart and how much the sample stretches before breaking. The testing was done on four different specimens: PE (polyethylene – from a shopping bag), PP (polypropylene – from plastic folder), Rubber (natural rubber – from a rubber band) and Acetate (cellulose acetate – from an overhead transparency). The specimens were obtained by cutting the polymer samples into appropriate lengths. The thickness and width of the samples were measured before stretching each one of them and putting them in the tensile tester. The dimensions of the specimens are taken with the aid of calipers for precision. Results and Discussion The stress-strain curves for the various test specimens are as follows: Figure 1: Stress-Strain Curve of Rubber (Poly-Isoprene) Figure 2: Stress-Strain Curve of Acetate (Cellulose Acetate) Figure 3: Stress-Strain Curve of PE (Polyethylene) Figure 4: Stress-Strain Curve of PP (Polypropylene) S. no. T est name Tensile Strength (MPa) Elongation at failure 1 PE 11.1 26% 2 PP 23.5 738% 3 Rubber 4.1 575% 4 Acetate 1 181.9 131% 5 Acetate 2 297.3 114% 6 Acetate 3 166.9 93% It can be observed from the graphs that the stress-strain curve of acetate was obtained thrice. The possible explanation for this can be that cellulose acetate exhibits different tensile strengths at different states – dry, wet & after being boiled (Stadlinger). The difference in

Written Assignment Questions about Orgamisation Management Essay

Written Assignment Questions about Orgamisation Management - Essay Example He implies that there should not only be one beneficiary of an organization saying that both the employer and the employee must gain a certain level of benefits that would be commensurate to the effort that both employee and employer has put in. His main objective was to increase productivity of the workers. He noticed that workers had their own way of doing their work even without any specific instructions on how it should be done. This discovery led to the conclusion that if the employees are left to their devises it made them lose efficiency and that they were not maximizing their abilities. He then introduced a solution of having supervisors to teach and help the workers do their work the right way. He further analyzed the actions and responsibilities that are essential in any job within the organization and developed processes for the jobs could be done in the most efficient ways possible. With the improved processes, the job requirements were coupled with the training of the workers and the support of the supervisors. They come in the type of right direction, assistance and incentives. With this, he included four principles guiding actions. First of the four principles is develop for every job a â€Å"science† that includes rules of motion, standardized work implements and proper working conditions. The second principle is to select worker with the right abilities for the job. The third is to carefully train workers to do the job and give them the proper incentives in cooperate with the job â€Å"science†. And the last principle is to support workers by carefully planning their work and by smoothing the way as they go about their jobs (Schermerhorn, 2007). The first principle says that any job should have guidelines of how to do implement the job. An example of this is in a fast food establishment, each of their burgers have a different way of cooking but a method was introduced to