Biostatistics for the Biological and Health Sciences
(3rd Edition) Marc Triola, Mario Triola & Jason Roy |
Complete Test Bank Chapters 1–14
Chapter 1
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
Actual
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
Actual
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
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D. 50 diabetic patients from a
clinic Actual 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
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D.
Ordinal Actual
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
Actual
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
Actual
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.
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A. Discrete
B.
Continuous Actual
Answer: A
Rationale: The number of babies born is discrete because it represents countable whole numbers.