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The square root of the sum of x minus x-bar squared divided by n â 1 is:Standard deviation of a populationStandard ErrorStandard deviation of a sampleVarianceDesign of experiments isbased on the central limit theoremorthogonal and balancedmanipulating one factor at a time while holding other factors constantnone of the aboveAccording to the central limit theorem, which of the following statements is true?The distribution of the sum (or average) of a large number of independent, identically distributed variables will be approximately normal, regardless of the underlying distribution.The center of a distribution is limited to move NO MORE THAN 1.5 standard deviations. (also known as the 1.5 sigma shift)The center of dispersion of a SAMPLE (x-bar) is limited by the size of the sample.The central tendency of a distribution is limited by common-cause variation.Which of the following statements is correct?Cp is always equal to CpkCp is equal to, or greater than CpkCp is less than or equal to CpkNone of the above

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