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In conducting a hypothesis test about the population mean ,if the population is truly or approximately normally distributed with unknown,then the test statistic will be z,corresponding to the normal distribution.
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Q97: State the null and alternative hypotheses.<br>H<sub>0</sub>: _<br>H<sub>1</sub>:
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Q118: State the null and alternative hypothesis.
Q163: In conducting a hypothesis test,we can choose