An Adverse Drug Effect (ADE) Is an Unintended Injury Caused

An adverse drug effect (ADE) is an unintended injury caused by prescribed medication. The table summarizes the proximal cause of 95 ADEs that resulted from a dosing error at a Boston hospital. $\begin{array}{lc}\hline \text { WRONG DOSAGE USE } & \text { NUMBER OF ADEs } \\\hline \text { (1) Lack of knowledge of drug } & 29 \\\text { (2) Rule violation } & 17 \\\text { (3) Faulty dose checking } & 13 \\\text { (4) Slips } & 9 \\\text { (5) Other } & 27 \\\hline \text { TOTAL } & 95\end{array}$

In order to determine whether the true percentages of ADEs in the five "cause" categories differ, a chi-square analysis was conducted. Use the chi-square distribution to determine the rejection region when testing at $\alpha =$ $0.025$ .
A) Reject $\mathrm { H } _ { 0 }$ if $\chi ^ { 2 } > 11.1433$
B) Reject $\mathrm { H } _ { 0 }$ if $\chi ^ { 2 } > 12.8325$
C) Reject $\mathrm { H } _ { 0 }$ if $\chi ^ { 2 } > 9.48773$
D) Reject $\mathrm { H } _ { 0 }$ if $\chi ^ { 2 } > 14.4494$ 2 Construct Confidence Interval