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DESCRIBING A SAMPLE
THE NORMAL CURVE
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alternate hypothesis analysis of variance Angle appear association assumed assumptions calculated caries Caucasians chapter class interval clinic coefficient column communities compute concluded confidence interval containing continuous correlation counts decide defined definitions degrees of freedom density dental determine differed significantly disease Enamel equals error Eskimo estimate examined example expected falling Figure fluoride concentration formula frequency distribution glucose groups histogram indicates less look Louisiana measurements method molar mottling normally distributed null hypothesis observations obtain paired patients periodontal population population mean predict probability proportion random sample rank reject relation relative frequency research hypothesis sample mean scores selected significant SNPog standard deviation statistics step studies surfaces Table teeth three groups tion treatments Type United usual variables water supplies ܐܐ ܐܐܐ