Each year, approximately 1.3 million Americans suffer adverse drug effects (ADEs), that is, unintended injuries caused by prescribed medication. A study in the Journal of the American Medical Association

(July 5, 1995) identified the cause of 247 ADEs that occurred at two Boston hospitals. The researchers found that dosing errors (that is, wrong dosage prescribed andlor dispensed) were the most common.

Wrong Dosage Cause Number of ADEs ..............................................................................................................

(1) Lack of knowledge of drug 29

(2) Rule violation 17

(3) Faulty dose checking 13

(4) Slips 9

(5) Other 27 The previous table summarizes the proximate cause of 95 ADEs that resulted from a dosing error.
Conduct a test (at a = .10) to determine whether the true percentages of ADEs in the five "cause" categories are different. Use the accompanying EXCEL printout to arrive at your decision.
EXCEL Output for Exercise 8.35 I CAUSE I ADEs I NO KNOWLEDGE RULE VIOLATE FAULTY DOSE I 13 1 SLIPS OTHER CHI-SQUARE I 16 P -VALUE 10.003019