1. A hospitals financial reimbursement payor mix indicates 35% of the patients have Medicare and 15% have Medicaid. Of those who have Medicare there is a 10% chance they also have Medicaid.
What is the probability that a hospital patient has both?
a. 0.015
b. 0.035
c. 0.005
d. 0.5
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2. A hospitals financial reimbursement payor mix indicates 25% of the population have Medicare and 10% have Medicaid. Of those who have Medicare, there is a 5% chance they also have Medicaid. What is the probability that a hospital patient has both?
a. 0.012
b XXXXXXXXXX
c XXXXXXXXXX
d XXXXXXXXXX
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3. A hospitals financial reimbursement payor mix indicates 30% of the population have Medicare and 20% have Medicaid. Of those who have Medicare, there is a 10% chance they also have Medicaid.
What is the probability that hospital patients have both?
a. 0.50
b. 0.03
c. 0.02 d XXXXXXXXXXA rural community clinic sees 8 patients per hour. The probability that a patient is diagnosed independently with hypertension is 0.63. The patients are assumed to be independently of other patients.
What is the probability that none of the patients will be diagnosed with hypertension?
a.0.68 pi 8
b XXXXXXXXXXpi 8
c. 0.37 pi 8 d XXXXXXXXXXpi 8 5. As part of an exercise regime, the probability of a person running outside is 0.45, the probability of a person joining a gym is 0.40, and the probability a person running outside and joining a gym is 0.25
What is the probability that a person either runs or joins a gym?
a. 0.70
b. 0.65
c. 0.85 d XXXXXXXXXXFive hundred values are normally distributed with a mean of 125 and a standard deviation of 10
What % of the values lies between the interval 115 – 135?
a. 68
b. 99
c. 50 d XXXXXXXXXXHeart rates:
98,88,74,83,76,99,81,73,60,66,88,94,73,82,95,85,76
Which method of display is appropriate to see the exact values
a. bar chart
b. histogram
c. stem plot d. pie chart 8. A study was conducted to see if gender influences the number of alcoholic beverages consumed per day. Which type of classification is this?
a. categorical, quantitative
b. quantitative, quantitative
c. quantitative, categorical d. categorical, categorical 9. A study was conducted on the possible relationship between gender and whether or not they exercise.
Which type of classification is this?
a. categorical to quantitative
b. quantitative to categorical
c. categorical to categorical d. quantitative to quantitative 10. A study is conducted on the possible relationship between blood pressure and HgbA1C
Which numerical measure is appropriate?
a. five-number summary
b. conditional percentages
c. correlation coefficient d. standard deviation 11. A study is conducted on the possible relationship between gender and tobacco use
Which numerical measure is appropriate?
a. correlation coefficient
b. standard deviation
c. conditional percentages d. five-number summary 12. A study is conducted on 100 accountable care organizations (ACO’s) successful in managing HgbA1C the average change in A1C for that organization.
Which numerical measure is needed?
a. five-number summary
b. interquartile range
c. mode d. mean 13. Nurses roll a die to see who will take an available shift.
What is the probability of the die landing on 2?
a. 0.34
b. 0.20
c. 0.25 d XXXXXXXXXXA researcher recently completed a trial on supplements. The researcher found that the more vitamins a person takes, the less likely the person will have a deficiency.
Which type of relationship is demonstrated?
a. positive causation
b. negative causation
c. positive association d. negative association 15. After a physical assessment of a patient, the doctor determines that the probability that the patient has an infection is 20% and the probability of CHF is 40%. However, if it is known that the patient has a history of CHF the probability is 40%
What is true about these diagnoses?
a. the diagnoses are dependent
b. the diagnoses are related
c. the diagnoses are disjoint d. the diagnoses are independent 18. A rural community clinic sees 8 patients per hour. The probability that a patient is diagnosed with hypertension is 0.63. The patients are assumed to be diagnosed independently of other patients.
What is the probability that none of the patients will be diagnosed with hypertension?
a. 0.68 pi 8
b XXXXXXXXXXpi8
c. 0.37 pi8 d XXXXXXXXXXpi8 19. A specialist saw 27 patients and made the following diagnosis. 7 had type 2 DM, 9 had coronary artery disease, 3 had both. What probability of a patient being diagnosed with type 2 DM or coronary artery disease?
a. 1-(7/27 – 9/27-3/27)
b. 7/27-9/27-3/7
c. 7/27+9/27-3/27 d. 1- (7/27+9/27-3/27) these are fractions within the brackets 20. The percentage of female and male employees who completed an annual well-visit is recored
Result / Well-visit / no well-visit / total
Female 86-50% 13.50% 100%
Male 65.50% 34.50% 100%
What is the percentage between gender and well-visit?
a. females are more likely to complete a well-visit because 86.50% > 65.50%
b. Males are more likely to complete a well-visit because 65.50% > 13.50%
c. Males are more likely to complete a well-visit because 65.50% > 34.50%
d. Females are more likely to complete a well-visit because 86.50% > 13.50%