Exam (elaborations)

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...

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test bank for biostatistics for the biological and

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Course Biostatistics

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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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Exam (elaborations)

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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