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→Description
2. ar or x is empty.
2. ar or x is empty.
3. ar contains only one value.
3. ar contains only one value.
<math>ZTEST(ar,\mu_0,sigma)= 1-NORMDIST(\bar{x}-\mu_0)</math>
<math>ZTEST(ar,\mu_0,sigma)= 1-NORMDIST(\bar{x}-\mu_0)/\frac{sigma}{\sqrt{n}}</math>
<math>\frac{a}{b}</math>
<math>\frac{a}{b}</math>
<math>{\sigma}</math>
<math>{\sigma}</math>
<math>{\sqrt{n}</math>
<math>{\sqrt{n}}</math>
==Examples==
==Examples==
#'''Example 1'''
#'''Example 1'''