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Six Sigma Class
Six Sigma Class

Drug Testing of Job Applicants. In 1990, 5.8% of job applicants who
Drug Testing of Job Applicants. In 1990, 5.8% of job applicants who

... now lower if a simple random sample of 1520 current job applicants results in 58 failures (based on data from the American Management Association). Does the result suggest that fewer job applicants now use drugs? [NOTE: Both examples are from the 8th edition of Elementary Statistics by Triola. Publi ...
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... The minimum accepted level of probability commonly used in psychology is 5%, this is represented as 0.05. If the level of significance achieved from a test is equal to or less 0.05 than the results are said to be significant. This would mean that we are 95% sure that the IV caused the change in the ...
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... results of statistical studies and to perform descriptive and basic inferential statistical studies within their areas of interest. The course concepts would be beneficial for the student with an interest in statistics. Emphasis will be placed upon the use of the calculator and the computer to perfo ...
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MIS2502: Data Analytics Descriptive Statistics

< 1 ... 277 278 279 280 281 282 283 284 >

Misuse of statistics

Statistics are supposed to make something easier to understand but when used in a misleading fashion can trick the casual observer into believing something other than what the data shows. That is, a misuse of statistics occurs when a statistical argument asserts a falsehood. In some cases, the misuse may be accidental. In others, it is purposeful and for the gain of the perpetrator. When the statistical reason involved is false or misapplied, this constitutes a statistical fallacy.The false statistics trap can be quite damaging to the quest for knowledge. For example, in medical science, correcting a falsehood may take decades and cost lives.Misuses can be easy to fall into. Professional scientists, even mathematicians and professional statisticians, can be fooled by even some simple methods, even if they are careful to check everything. Scientists have been known to fool themselves with statistics due to lack of knowledge of probability theory and lack of standardization of their tests.
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