Math Solutions

[Steps Shown] A geophysicist plans to research the amount of carbon dioxide being emitted due to volcanic activity from Mt. St. Helens by recording the levels

Question: A geophysicist plans to research the amount of carbon dioxide being emitted due to volcanic activity from Mt. St. Helens by recording the levels of CO 2 over a period of 60 days. If the amount of carbon dioxide emitted from volcanic activity has a population mean of 42 ppm (parts per million) and a standard deviation of 7 ppm.

  1. What is the mean of the distribution of \[\bar{x}\] ?
  2. What is the standard deviation of the distribution of \[\bar{x}\] ?
  3. What type of distribution does \[\bar{x}\] have? Why?
  4. Determine P( \[\bar{x}\] > 44) to 4 decimals of accuracy.

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