Using Confidence Intervals to Test Hypotheses

Article

Barr, Donald R.   (1969, ASQC)   Naval Postgraduate School, Monterey, CA

Journal of Quality Technology    Vol. 1    No. 4
QICID: 5034    October 1969    pp. 256-258
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Article Abstract

When separate 100(1-alpha) percent confidence intervals on two population means overlap, the means may or may not be significantly different at the 100-alpha percent level. This phenomenon is explored analytically and numerical examples are given.

Keywords

Confidence intervals,Hypothesis testing,Mean,Normal distribution


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