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[DOCX File]Examples of Statistical Inferences - CSU East Bay
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Examples of Statistical Inferences. Sales commissions: A company studied two programs for compensating its sales staff. Nine salespeople participated in the study. In program A, salespeople were paid a higher salary, plus a small commission for each item they sold. In program B, they were paid a lower salary with a larger commission.
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Statistical Versus Clinical Significance in Psychiatry
Statistical tests in inferential statistics are, in general, designed to answer the question “How likely is the difference found in a sample due to chance (when actually no such difference ...
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[DOC File]CRITIQUE EXAMPLE – JOURNAL ARTICLE
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This was a very in-depth research project, particularly for a journal article. For the most part, it was well written and well organized. There was a definite need for a short review of literature to develop the situation. The article did get a little complicated in the reporting of data due to the complicated statistical procedures used.
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[DOC File]Example of statistical analysis
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Example of statistical analysis 1. Recording the number of potential pollinators approaching and the number of those landing allows us to separate the effects of reduced visitation of predator-occupied plants from an overall reduction in the number of pollinators visiting.
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[DOCX File]Statistical Tests - Loudoun County Public Schools
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21. What is the meaning of a two-tailed test? If you are using a significance level of alpha = 0.05, a two-tailed test allots half of your alpha to testing the statistical significance in one direction and half of your alpha to testing statistical significance in the other direction.
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[DOC File]Statistical Tests of Models That Include Intervening Variables
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indirect effect and significance using normal distribution Value s.e. LL 95 CI UL 95 CI Z Sig(two) Sobel .4500 .3231 -.1832 1.0831 1.3929 .1637
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[DOC File]SPSS & Hypothesis Testing - Pacific University
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Hypothesis Testing . Hypothesis testing is a decision making process for evaluating claims about a population. The researcher must: Define the population under study . State the hypothesis that is under investigation . Give the significance level . Select a sample from the population . Collect the data . Perform the statistical test . Reach a ...
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[DOC File]Sampling and Sample Size
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That is, statistical significance is a necessary precondition for clinical significance but says nothing about the actual magnitude of the effect. One last concept: the role of variability in power and sample size… Streiner and Norman state: “Nearly all statistical tests are based on …
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[DOCX File]Part A - University of Phoenix
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Questions 3a through 3d are based on a distribution of scores with X =75 . and the standard deviation = 6.38.. Draw a small picture to help you see what is required.
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[DOC File]STATISTICS - SUMMARY
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Statistical significance versus practical significance. Hypothesis tests merely test how confidently we can generalize from what was found in the sample to the population we have sampled from. It assumes random sampling thus, you cannot do statistical hypothesis tests from a …
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Statistical tests of significance examples