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It takes an average of 10.3 minutes for blood to begin clotting after an injury. An...

It takes an average of 10.3 minutes for blood to begin clotting after an injury. An EMT wants to see if the average will increase if the patient is immediately told the truth about the injury. The EMT randomly selected 50 injured patients to immediately tell the truth about the injury and noticed that they averaged 10.8 minutes for their blood to begin clotting after their injury. Their standard deviation was 1.43 minutes. What can be concluded at the the

  1. For this study, we should use Select an answer z-test for a population proportion t-test for a population mean
  2. The null and alternative hypotheses would be:
  3. The test statistic ? t z  =  (please show your answer to 3 decimal places.)
  4. The p-value =  (Please show your answer to 4 decimal places.)
  5. The p-value is ? ≤ >  
  6. Based on this, we should Select an answer accept fail to reject reject  the null hypothesis.
  7. Thus, the final conclusion is that ...
Math   Statistics-And-Probability   
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