[ad_1] Test Statistic Excel functions Confidence Interval formula One population mean sigma known H0: = value H1: ><≠ value z = x - s / n =NORM.S.DIST( ) X± Za/2sn=NORM.S.INV(a/2) One population mean sigma unknown H0: =
[ad_1] Test Statistic Excel functions Confidence Interval formula One population mean sigma known H0: = value H1: ><≠ value z = x - s / n =NORM.S.DIST( ) X± Za/2sn=NORM.S.INV(a/2) One population mean sigma unknown H0: =