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Question
Standard X-ray machines should give radiation dosages below 5.00 milliroentgens (mR). 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 p-value for this test statistic and test the claim at 
= .05 using the p-value rule.
Answer
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