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The random sample data analysis showed that the mean salary of 40 elementary school teachers in...

The random sample data analysis showed that the mean salary of 40 elementary school teachers in study showed $28,500. Is the sample data within or out of the 95% CI the reference information (a mean of $27,000 and a standard deviation of $2,000)? Show me the process how to prove true or false on this statement (use 95% CI).


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Answer:-

This is the overall process to prove that the sample data is out of 95 % confidence interval .

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