Three nurses at the Veteran’s Affairs Medical Center

Three nurses at the Veteran’s Affairs Medical Center
Three nurses at the Veteran’s Affairs Medical Center noticed an unusually high number of deaths at
times when a nurse named Kristen Gilbert was working. These same nurses later noticed missing
supplies of epinephrine – a drug that stimulates the heart. The following data was submitted to a
statistician to determine if there was a strong enough correlation for an indictment. [True story]
Shifts with a Death Shifts without a Death Gilbert working 40 217 Gilbert not working 34 1350 Test the claim that whether Gilbert was on duty for a shift is independent of whether a patient died
during the shift. Since this is a serious analysis, use a significance level of 0.01. [3 decimal places]

a) H0: __________________________

b) What is the critical value (s)? _________ Ha: ____________________________

c) What is the test statistic? _________

d) Should this nurse be indicted on these charges according to the results? __________ Why or why
not? ______________________________________________________________________

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