INTRODUCTION Statistics deals with methods which help in estimating the characteristics of a population or making decisions concerning a population on the basis of the sample results. Sample and population are the two relative terms. A population is treated as universe and a sample is fraction or segment of the universe. Statistics describe the data and consists of the methods and technique used in the collection, organization, presentation and analysis of data in order to describe the various features and characteristics of such data. These can either be graphical or computational. In this, nothing can be inferred from the data nor can decision be made or conclusion drawn. (Akbhanj, 2013)
Statistics are aggregate facts, a series relating
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Furthermore, function of statistics is presentation of fact, simplification of complexities, facilitating comparisons, facilitating the formulation of policies, widening of human knowledge, useful in testing the laws of other sciences, facilitates the forecasting, establishment of correlation between two facts. ( Madan kumar, 2014) Statistics provided methodology for understand, assessed and controlled the operation of the organization and thus promotes organization welfare. The facts based on statistical operation are considered to be most reliable and dependable. ( Madan kumar, …show more content…
It is most frequently used and the value is affected by the value of every observation in data. Measures of dispersion is common measures of dispersion from grouped and ungrouped. (DrZahid Khan, 2014) Range defined as different between largest and smallest score in set of data. ( Appendix 8) Interquartile range defined as the different between the upper and lower quartiles. ( Appendix 9). Semi Interquartile range(SIR) called Quartile deviation defined as the difference between first and third quartiles and divided by two (Appendix 10) SIR is often used with skewed data as it is insensitive to the extreme scores. (Appendix 11). . (DrZahid Khan, 2014) Mean deviation is measures the average distance of each observation away from the mean of the data like gives an equal weight to each observation. Generally more sensitive than the range or interquartile range, since a change in any value will effect it. (Appendix 12). (DrZahid Khan,
Statistic is more accurate when it comes to show the level. For example, 1 bottle of soda might be “a few” for soda lovers, but it might be “too much” and unacceptable for the ones who want a healthy life or just hate the feeling of hiccups. Jacoby used statistics to support his argument, and let audiences get convinced after they get the numbers and start to feel the same way Jacoby feels. For example, when he discussed how jail is costly, he mentioned the price with the statistic. “Meanwhile, the price of keeping criminals in cages is appalling-a common estimate is 30,000 per inmate per year.”
The weekly average was not precise due to the values on Tuesday and Thursday being so much higher proportionally compared to Monday and Wednesday (Graph 1 ). Specific heat was also a value which varied based on the accuracy of the execution of the experiment. Different days lead to different amounts of precision and this was due to the random errors. Random errors were mistakes caused by the experimenter. Tuesday had the lowest standard deviation for all the metals (Table 1).
Understanding statistics will give me the ability to make better organizational
Describe and evaluate two definitions of abnormality [16 marks] One definition of abnormality comes from statistical infrequency. We typically define what is seen as ‘normal’ by referring to statistical values. For example, from statistical evidence, we can be informed of things such as the average shoe size of 11-year olds, the average age of a first-time mother, and so on. As we can define what is ‘normal’ through statistics, we can also define what is abnormal. For instance, it is seen as abnormal for a first-time mother to be over the age of 40 or under the age of 20.
The statistical surveying and information gives a knowledge to Tesco of what they client's needs and needs are. However the test that Tesco countenances is that it requires a considerable measure of time for an organization like Tesco to break down this information and believer it into insights. The benefit of this is Tesco procured another organization to dissect their information for them and they comprehended that it would be a great deal of work for them. However the weakness of this is this would be exceptionally costly for Tesco to get another organization to examine their information for
PSY 350: Experimental Psychology Statistics planning worksheet 1. What is your conceptual IV? That is, what thing do you want to change for participants because you think it will affect an outcome? If you have more than one IV, answer this question for each IV separately. The conceptual independent variable is the emotions of the participants during the experiment. 2.
Paired Differences t df Sig. (2-tailed) Mean Std. Deviation Std. Error Mean 95% Confidence Interval of the Difference Lower Upper Pair 1 CES-D Score - CESD Score, Wave 1 .71718
Week Two Reflective Assignment Mary Carnahan QN 320: Essential Statistical Thinking July 20, 2016 Week Two What I learned this week in “Data Description, Probability, and Counting Rules” Chapter three “Descriptive Analysis and Presentation of Bivariate Data” Bivariate data are values with the two different variables that are from the same population element.
Transforming the digital information into simple form. Inference: Making a meaningful conclusion based on the data is Inference in simple words. To minimize the duplicate data and make it to meaningful information. Identification of Relationships: Relationship between two variables or sets of data.
It measures how the speed of a baseball after it is hit by a batter. According to Sports Illustrated
She then goes on to use another statistic that will confirm the first one that she had used in the opening sentence to bring together her theme and topic of the essay. Throughout her essay she uses a piece of statistics in at least 50% of the paragraphs written, and in the
…3 B. Summary of Evidence…………………………………………………………..………4-5 C. Evaluation of Sources.…………………………………………………...……..……. …6-7 D. Analysis………………………………......…………………………………………. ….8-9 E. Conclusion……………………………………. ……………………………. …………..
Kaiser Family Foundation (2012), health and health care despairs refer to differences in the health and health care between population groups. The health disparity generally refers to a higher burden of illness, injury, disability, or mortality experienced by one population group relative to another. A health care disparity typically refers to the differences between groups in health coverage, access to care, and quality of care. While disparities are commonly viewed through the lens of race and ethnicity, they occur across many dimensions, including socioeconomic status, age, location, gender, disability status, and sexual orientation (HKFF,
RPI had the lowest correlation, so it was weighted the
When I used 10 volts the standard deviation for hydrogen was 2.5+0.23=2.73 and 2.5-0.23=2.27 so the range of values is between 2.27 cm3 and 2.73 cm3 and the standard deviation for oxygen was 1.3+0.12=1.42 and 1.3-0.12=1.18 so the range of the standard deviation was between 1.18 to 1.42. When I used 11 volts the standard deviation for hydrogen was 5.8+0.20=6.0 and 5.8-0.20=5.6 so the range