Solve the problem.For the study described below, identify the sample.A researcher is interested in the level of stress among emergency-room nurses in the U.S. 275 emergency-room nurses were interviewed to determine their level of stress. Each nurse was assigned a stress rating based on his or her answers to a number of questions. The average stress rating for the 275 nurses was determined.
A. The 275 emergency-room nurses interviewed
B. The average stress rating for the 275 emergency-room nurses interviewed
C. All emergency-room nurses in the U.S.
D. The questionnaire given to the 275 emergency-room nurses interviewed
Answer: A
Mathematics
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Evaluate the integral.
A. 
+ C
B. 
ln 
+ C
C. 
+ C
D. 
+ C
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Find the value of the derivative.
if y = 4 - 
A. 5 B. 3 C. - 1 D. 1
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Use the prime factorization method to find the LCM of the given numbers.6, 12, and 22
A. 22 B. 264 C. 132 D. 1584
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