The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.020.02 level that the medicine relieves pain in less than 396396 seconds. For a sample of 6262 patients, the mean time in which the medicine relieved pain was 392392 seconds. Assume the population standard deviation is 1818.   Step 1 of 6 :   State the null and alternative hypotheses.

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The director of research and development is testing a new medicine. She wants to know if there is evidence at the 0.020.02 level that the medicine relieves pain in less than 396396 seconds. For a sample of 6262 patients, the mean time in which the medicine relieved pain was 392392 seconds. Assume the population standard deviation is 1818.

 
Step 1 of 6 :  

State the null and alternative hypotheses.

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