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Exam 10: Statistics and Data Presentation

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Question 21

Multiple Choice

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What is the term for the number of new cases of a disease?

A) Incidence
B) Prevalence
C) Attack rate
D) Spectrum of disease

E) B) and C)
F) A) and D)

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Question 22

Multiple Choice

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What is it called when every member of the population has the same chance of being included in the sample and the selection of one member has no effect on the selection of another member?

A) Random sample
B) Type II error
C) Population
D) Type I error

E) A) and C)
F) All of the above

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Question 23

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Ten patients were discharged from the obstetrical service on May 4 at Rocky Mountain Hospital. The day's stay for each patient was 3, 2, 1, 1, 6, 5, 1, 2, 2, and 4. What was the median day's stay for these patients?

What was the average length of stay for the following patients: 4, 3, 2, 5, 5,10?

When intervals are used in frequency distribution tables, the intervals should be

The number of medications a person is taking is an example of ordinal data.

A sample is a subset of a population that is valid if it is a True representation of

Ten patients were discharged from the obstetrical service on May 4 at Rocky Mountain Hospital. The day's stay for each patient was 3, 2, 1, 1, 6, 5, 1, 2, 2, and 4. What was the range for these patients' length of stay?

The _________________________ demonstrates how values are spread around the mean and is the square root of the variance.

What kind of data is shown?

What is the median LOS for patients having nosocomial viral pneumonia?

What kind of data is shown?

Which statistic represents the number of individuals in a specific category divided by the number of individuals in the category?

A type I error is when the researcher

What type of data are these examples: the number of records that are analyzed, the number of patients interviewed in a patient satisfaction survey?

Which denominator is appropriate for computing the maternal death rate?

The ____________________ is the difference between the highest and lowest values.

In an 800-bed health care facility during the month of January the total inpatient days for adults were 13,500. What was the percentage of occupancy?

The ranking of variables according to some criterion is called _____ data.

What is the major disadvantage of the range?