Standard X-ray machines should give radiation dosages below 5.00 milliroentgens.To test a certain X-ray machine,a sample of 36 observations is taken,with a mean of 4.13 mR and a population standard deviation of 1.91 mR.Calculate the appropriate test statistic to test the hypotheses.

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The Answer of Standard X-ray machines should give radiation dosages below 5.00 milliroentgens.To test a certain X-ray machine,a sample of 36 observations is taken,with a mean of 4.13 mR and a population standard deviation of 1.91 mR.Calculate the appropriate test statistic to test the hypotheses.

Standard X-Ray Machines Should Give Radiation Dosages Below 5