Statistical hypothesis testing

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    of collecting and analyzing numerical data in large quantities, especially for the purpose of inferring proportions in a whole from those in a representative sample. The following paper seeks to provide basic knowledge in some specific areas of statistical data analysis. Descriptive statistics Descriptive statistics is the term given to the analysis of data that helps describe, show or summarize data in a meaningful way. Descriptive statistics do not allow us to make conclusions beyond the data…

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    Front End Plan Essay

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    Numerous research studies have been conducted by the CII and also other FEP researchers with regards to the implementation and critical importance of front end planning in project success. But there are very few studies that provide quantifiable statistical data supporting FEP adoption. CII has published data analysis for FEP data which analyses the relationship between project PDRI scores and scope definition, and project cost, schedule and change performance. Even though the it is evident that…

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    the store has speculated some information about credit customers. By using the sample data of 50 credit customers, along with hypothesis testing and confidence intervals, we could determine whether manager’s speculations are convincing. Also, this report provides the summarization on the four variables of interests; income, location, number of years…

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    statistics. Not necessarily that it should be overly formalized or technical, but one with sound judgement. Abelson argues that good judgement with statistics in social science has been lost because there is considerable focus on null hypothesis testing (Abelson, 2). Statistical results that are shared should always be prefaced with a context and be provided with comparison groups. Also, it should never be the case for researchers to come up with an absolute conclusion once a model reaches the…

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    Answer the following question: Define the term statistical hypothesis. A hypothesis that is testable on the basis of a process being observed through a set of random variables. Define the terms null hypothesis and alternative hypothesis. The term null hypothesis refers to a general statement or a default position in which there is no relationship between two measured phenomena or no difference among groups.In other words, it is a simple hypothesis that is related to a contradiction to a theory…

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    We failed to find any data to support our hypothesis because there were no statistically different values or results. In addition, all the messages were the same because we did not find any statistically significant data or results. Further tests could have been done with an increased sample size that could possibly yield at statistically significant p-value. By modifying the messages for future tests, we could be able to increase the statistical significance of the results. We could create…

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    Amgis Case Analysis Essay

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    Amgis, a flavors and food additives company has a sudden surge in production due to increase in sales and transfer of production from an affiliate. The company requires additional labor to cope with the sudden increase in production. However, strict labor laws have limited the company to hire permanent employees, and overtime employees and forced them to engage temporary labor to keep the process flowing. The company then had to make arrangements with a third party labor provider and the…

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    Chi-Square Test

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    The statistical test used in this experiment was a Chi-square test because it measures the goodness of fit. There were 370 trials performed in the overall experiment. The sample size in the experiment was 740. Each cricket whether it was labeled intruder or resident had an observed and expectant number times it should win. For the resident crickets, it was expected that the cricket would win 185 times in the experiment. The observed value was calculated to be 238 wins in the experiment as well.…

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    Assignment 3 Data Analysis

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    has a nominal scale with 1, 2, and 3. The quiz 3 variable, or the outcome variable, uses a ratio scale of measurement for each variable. 3. The sample size of the data consists of 105 students who range from first year to fourth year in college. Testing Assumptions 1.…

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    Wind Direction’s Effect on Flour Beetle Search Behavior INTRODUCTION ϖ Background Beetles are arthropods and generally classified as insects (General Biology, 2014). The flour beetle (Tribolium spp.) is commonly found in flour mills, food storage warehouses, and even homes, where it feeds upon flour and other grains (General Biology, 2014). Though flour beetles are harmless, they are a huge agricultural problem (General Biology, 2014). Due to their status as an agricultural pest, it is…

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