Test Bank For Biostatistics for the Biological and Health Sciences 2nd Edition Author(s) Marc M. Triola; Mario F. Triola; Jason Roy
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Course
Biostatistics
Institution
Biostatistics
Chapter 14, "Survival Analysis," from Biostatistics for the Biological and Health Sciences, 2nd Edition by Marc M. Triola, Mario F. Triola, and Jason Roy:
What is the primary focus of survival analysis? A) To estimate the average time until an event occurs
B) To compare means across multiple gr...
Test Bank For Biostatistics for the Biological and Health
Sciences 2nd Edition
Author(s)
Marc M. Triola; Mario F. Triola; Jason Roy
@2024
,Chapter 1: Introduction to Statistics
1. Determine whether the given value is a statistic or a parameter: The average (mean)
weight of all newborns in a hospital over a month is 7.5 pounds.
• A. Statistic
• B. Parameter
Answer: B
Rationale: Since it refers to the entire population of newborns in the hospital, it is a
parameter.
2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients
found that 60% were satisfied with their healthcare.
• A. Statistic
• B. Parameter
Answer: A
Rationale: The value is based on a sample, making it a statistic.
3. Which of the following represents a population?
• A. A sample of 200 patients from a hospital
• B. All patients admitted to a hospital in 2023
• C. A group of patients selected for a study
• D. 50 diabetic patients from a clinic
Answer: B
Rationale: A population includes all members of a group, while a sample is a
subset of the population.
4. A nurse records the number of times each patient visits the clinic in a month. What type
of data is this?
• A. Discrete
• B. Continuous
• C. Nominal
• D. Ordinal
Answer: A
Rationale: The number of visits is discrete data because it represents countable
whole numbers.
,5. A researcher measures the height of patients in a clinic. What level of measurement is
height?
• A. Nominal
• B. Ordinal
• C. Interval
• D. Ratio
Answer: D
Rationale: Height is measured on a ratio scale because it has a true zero and
meaningful differences between values.
6. Which type of data is temperature in Celsius?
• A. Nominal
• B. Ordinal
• C. Interval
• D. Ratio
Answer: C
Rationale: Temperature in Celsius is interval data because it has no true zero, but
the differences between values are meaningful.
7. Determine whether the data is discrete or continuous: The number of babies born in a
hospital each day.
• A. Discrete
• B. Continuous
Answer: A
Rationale: The number of babies born is discrete because it represents countable
whole numbers.
8. Determine whether the data is discrete or continuous: The weight of each newborn in a
hospital.
• A. Discrete
• B. Continuous
Answer: B
Rationale: Weight is continuous data because it can take any value within a range.
, 9. A nurse collects data on the number of days patients spend in the hospital. What level of
measurement is this?
• A. Nominal
• B. Ordinal
• C. Interval
• D. Ratio
Answer: D
Rationale: The number of days is ratio data because it has a true zero and
meaningful differences between values.
10. A researcher categorizes patients by blood type. What level of measurement is this?
• A. Nominal
• B. Ordinal
• C. Interval
• D. Ratio
Answer: A
Rationale: Blood type is nominal data because it represents categories without a
meaningful order.
11. In a study, the ages of participants are recorded. What type of variable is age?
• A. Nominal
• B. Ordinal
• C. Interval
• D. Ratio
Answer: D
Rationale: Age is ratio data because it has a true zero point and meaningful
differences between values.
12. Determine the type of sampling used: A hospital administrator selects every 5th patient
from a list of discharged patients.
• A. Simple random sampling
• B. Systematic sampling
• C. Stratified sampling
• D. Cluster sampling
Answer: B
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