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Unformatted text preview: Greater than, less than, at least, at most, significant different. Greater than (more): H o : mu<=mu o H A : mu>mu o Less than: H o : mu>=mu o HA: mu<mu o Sig. difference: H o : mu =mu o H A : mu =/ mu o Less than: Lower tailed Greater than: upper tailed Significant difference: 2 tailed 2 sample test: pt. est. = x1 –x2, degrees of freedom: (n1 + n2) – 2 STAT|TEST|2SAMPTTEST Reject? Is p< sig.level = yes reject = there IS evidence t = [pt.est. - H o ]/SE H o = 0 sig level = 1 – confidence level...
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- Fall '08