HPAT Numerical Reasoning and Data Analysis 2

Question 1

A hospital's quarterly surgery counts are Q1: 80, Q2: 100, Q3: 120, Q4: 100. What fraction of all surgeries for the year occurred in Q3?

Accepted Answer

3/10

Answer

Total = 80 + 100 + 120 + 100 = 400; Q3 fraction = 120 ÷ 400 = 3/10.

Question 2

A patient's blood glucose (mg/dL) readings: 6am=90, 8am=160, 10am=130, 12pm=105, 2pm=95. Between which time interval did blood glucose decrease the most?

Accepted Answer

8am–10am

Answer

Glucose fell 30 points from 160 to 130 between 8am and 10am, the largest single-interval drop.

Question 3

A study finds a correlation coefficient of −0.78 between weekly exercise hours and resting heart rate. What does this indicate?

Accepted Answer

Strong negative: more exercise is associated with lower resting heart rate

Answer

A coefficient of −0.78 indicates a strong negative relationship: more exercise is associated with a lower resting heart rate.

Question 4

In a study of 500 patients, 155 were exposed to factor Y. Of those exposed, 45 developed condition X. Of the 345 unexposed, 30 developed condition X. What is the approximate risk of developing condition X among those exposed?

Accepted Answer

29%

Answer

Risk in exposed group = 45 ÷ 155 ≈ 0.29 = 29%.

Question 5

A hospital's infection rate dropped from 4.8% to 3.2% after implementing a new hygiene protocol. What is the absolute reduction in infection rate?

Accepted Answer

1.6 percentage points

Answer

Absolute reduction = 4.8% − 3.2% = 1.6 percentage points.

HPAT - Health Professions Admissions Test Practice Test

HPAT - Health Professions Admissions Test Practice Test

HPAT Numerical Reasoning and Data Analysis 2