# Chi-Squared Test for Independence

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.

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Please see attached response to the following question:

Saint Botulism's Hospital commissioned an independent study to ...

#### Solution Summary

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.

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