Thread: confidence level
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Old June 30th, 2009, 06:35 PM
chrissy72 chrissy72 is offline
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I do.
For means I have (for known variance) H_{0}: \mu=\mu_{0} H_{1}: \mu>\mu_{0}

z \ge z_{\alpha} OR \bar{x} \ge \mu_{0}+z_{\alpha}\sigma/\sqrt{n}

For unknown variance

t \ge t_{\alpha}(n-1) OR \bar{x} \ge \mu_{0}+t_{\alpha}(n-1)s/\sqrt{n}
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