Question 14 (10 points) d A hospital administrator wants to determine the propor

Question

Question 14 (10 points) d A hospital administrator wants to determine the proportion of emergency room patients that use the emergency room (ER) for non-emergency care. She randomly samples records from 350 ER patients and determines that 74 of those patients required only non-emergency care. If the same data were used but the confidence level used was 95% instead of 90%, the error bound for the proportion EBP would be: larger we are unable to determine unless another sample is obtained smaller the same

Explanation / Answer

The error bound for the proportion, also called as the margin of error, is calculated using the following formula:

EBP = zc*Standard error

Since it is given that data is the same, so the standard error does not change.

However, the confidence level has increased to 95% from 90%, and the value of zc corresponding to 95% is larger.

So overall the EBP would increase.

So the answer is larger.

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