MATH 325 DeVry Midterm Exam Latest



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MATH 325 DeVry Midterm Exam Latest


MATH 325 DeVry Midterm Exam Latest


MATH 325 DeVry Midterm Exam Latest

Question 1. 1.(TCO 2) Upon admission, the age of hospital patients is most appropriately displayed in a(n): (Points : 5)

  • table.
  • histogram.
  • one-variable bar chart.
  • two-variable bar chart.

Question 2. 2.(TCO 4) Which of the following measures of dispersion is most often used with the mean to describe a frequency distribution? (Points : 5)

  • Range
  • Standard deviation
  • Variance
  • Any of the above

Question 3. 3.(TCO 5) We want to determine if Critical Care Hospital’s ALOS (m1) for DRG XXX is significantly less than the national ALOS (m2) for DRG XXX. The alternative hypothesis would be stated as: (Points : 5)

  • m1¹m2.
  • m1
  • m1>m2.
  • m1=m2.

Question 4. 4.(TCO 1) Of the following mortality rates, which two have the same denominator?

i. Crude mortality rate

ii. Age-specific mortality rate

iii. Sex-specific mortality rate

iv. Race-specific mortality rate

v. Cause-specific mortality rate (Points : 5)

  • I and ii
  • II and iii
  • III and v
  • I and v

Question 5. 5.(TCO 3) The extent to which a measuring instrument provides approximately the same results on repeated measures: (Points : 5)

  • validity.
  • reliability.
  • sensitivity.
  • specificity.

Page 2

Question 1. 1.(TCO 1) Below is a table indicating the number of individuals who became ill after eating clams at a local restaurant. Calculate:

I. the risk among those who ate the clams; and

II. the overall relative risk.

Ill Well Total
Exposed 36 12 48
Unexposed 3 36 39
Total 39 48 87

(Points : 20)

Question 2. 2.(TCO 3) Explain the role that outcome data has on healthcare research, in your own words. Give examples. (Points : 20)

Question 3. 3.(TCO 5) You have been asked to collect data on the effectiveness of the EHR (electronic health record) transition within the 324-bed hospital you work at. Outline your data collection options and determine which one would be most effective for this endeavor. Please explain your selection.(Points : 20)

Question 4. 4.(TCO 6) 1) Discuss, in your own words, the role that both data and statistics have in patient care, 2) provide a minimum of two examples of specific data and/or statistics in your presentation, and 3) describe their role in quality. (Points : 15)