Question: (20 points) Question 2 : In Question 1 : Calculate the correlation coefficient r, between x and y, for drug A. Is there significant positive

(20 points) Question 2 : In Question 1 :

  1. Calculate the correlation coefficient r, between x and y, for drug "A". Is there significant positive correlation? Use = 0.01.
  2. For drug "A", construct a 95% CI for b and interpret it.
  3. For drug "A", is there sufficient evidence that the slope b is posi-
  4. tive, b > 0? Use = 0.01.

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