Saint Botulism's Hospital commissioned an independent study to determine if there was a difference between the quality of care provided by hospital-trained nurses and tertiary-trained nurses. Two hundred nurses were rated as either providing Superior Service (S) or Adequate Service (A). The results are attached.
Are the events H and S independent? Justify your answer mathematically.
Please see attached response to the following question:
Saint Botulism's Hospital commissioned an independent study to ...
Using the Chi-Squared Test for Independence, this solution calculates whether or not two events (H and S) are independent, and justifies the answer mathematically.