Test Bank For Biostatistics for the Biological and Health Sciences 3rd Edition All Chapters - 9780137863792

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, Chapter 1: Introduction to Statistics t t t t




1. Determine whether the given value is a statistic or a parameter: The average (mean) weight of all
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tnewborns in a hospital over a month is 7.5 pounds.
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• A. Statistic
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• B. Parameter
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t Answer: B t




Rationale: Since it refers to the entire population of newborns in the hospital, it is a parameter.
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2. Determine whether the given value is a statistic or a parameter: A survey of 100 patients found
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t that 60% were satisfied with their healthcare.
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• A. Statistic
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• B. Parameter
t




t Answer: A t




Rationale: The value is based on a sample, making it a statistic.
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3. Which of the following represents a population?
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• A. A sample of 200 patients from a hospital
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• B. All patients admitted to a hospital in 2023
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• C. A group of patients selected for a study
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• D. 50 diabetic patients from a
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clinic Answer: B
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Rationale: A population includes all members of a group, while a sample is a subset of the population.
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4. A nurse records the number of times each patient visits the clinic in a month. What type of data is this?
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• A. Discrete
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• B. Continuous
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• C. Nominal
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,• D. Ordinal t




t Answer: A t




Rationale: The number of visits is discrete data because it represents countable whole numbers.
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5. A researcher measures the height of patients in a clinic. What level of measurement is height?
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• A. Nominal t




• B. Ordinal t




• C. Interval t




• D. Ratio t




t Answer: D t




Rationale: Height is measured on a ratio scale because it has a true zero and meaningful differences
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tbetween values. t




6. Which type of data is temperature in Celsius?
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• A. Nominal t




• B. Ordinal t




• C. Interval t




• D. Ratio t




t Answer: C t




Rationale: Temperature in Celsius is interval data because it has no true zero, but the differences between
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tvalues are meaningful.
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7. Determine whether the data is discrete or continuous: The number of babies born in a hospital
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teach day. t




• A. Discrete t




• B. Continuous
t




t Answer: A t




Rationale: The number of babies born is discrete because it represents countable whole numbers.
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, 8. Determine whether the data is discrete or continuous: The weight of each newborn in a hospital.
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• A. Discrete t




• B. Continuous
t




t Answer: B t




Rationale: Weight is continuous data because it can take any value within a range.
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9. A nurse collects data on the number of days patients spend in the hospital. What level of
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tmeasurement is this? t t




• A. Nominal t




• B. Ordinal t




• C. Interval t




• D. Ratiot




t Answer: D t




Rationale: The number of days is ratio data because it has a true zero and meaningful differences between
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tvalues.



10. A researcher categorizes patients by blood type. What level of measurement is this?
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• A. Nominal t




• B. Ordinal t




• C. Interval t




• D. Ratiot




t Answer: A t




Rationale: Blood type is nominal data because it represents categories without a meaningful order.
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11. In a study, the ages of participants are recorded. What type of variable is age?
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• A. Nominal t




• B. Ordinal t




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