Untitled Quiz

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which of the following variables is quantitative?

Weights of babies born in a hospital during a year. (correct)
Class standing of the members of this class relative to each other.
Admitting diagnoses of patients admitted to a mental health clinic.
Gender of babies born in a hospital during a year.
Under-arm temperature of day-old infants born in a hospital. (correct)
Range of motion of elbow joint of students enrolled in a university health sciences curriculum.

What is the difference between a statistic and a parameter?

A statistic is a descriptive measure computed from a sample, while a parameter is a descriptive measure computed from a population.

Which of the following is NOT a measure of central tendency?

Range (D) Signup and view all the answers

Which of the following measures of central tendency is most affected by extreme values?

Mean (A) Signup and view all the answers

Which of the following measures of central tendency is not unique?

Mode (B) Signup and view all the answers

What is the purpose of a measure of dispersion?

To indicate the spread of the data (B) Signup and view all the answers

What is the range of a dataset?

The range is the difference between the largest and smallest values in the dataset. Signup and view all the answers

What is the standard deviation of a dataset?

The standard deviation is the square root of the variance. Signup and view all the answers

What is the coefficient of variation of a dataset?

The coefficient of variation is the standard deviation divided by the mean, expressed as a percentage. Signup and view all the answers

What are the two types of errors that can occur when testing a hypothesis?

Type I error occurs when you reject the null hypothesis when it is actually true. Type II error occurs when you fail to reject the null hypothesis when it is actually false. Signup and view all the answers

What is the level of significance in hypothesis testing?

The probability of rejecting the null hypothesis when it is true (A) Signup and view all the answers

How is the p-value used in hypothesis testing?

The p-value is the probability of obtaining the observed results, or more extreme results, if the null hypothesis is true. If the p-value is less than or equal to the level of significance (alpha), then the null hypothesis is rejected. Signup and view all the answers

Which of the following statements is TRUE about the p-value?

A low p-value provides strong evidence to reject the null hypothesis. (C) Signup and view all the answers

Which of the following is a valid interpretation of a p-value of 0.03?

There is a 3% chance that the null hypothesis is true. (B) Signup and view all the answers

What is the purpose of health service statistics?

All of the above (D) Signup and view all the answers

What is the average daily census?

The average daily census is the average number of inpatients present in a hospital each day over a given time period. Signup and view all the answers

How is the average daily census calculated?

By dividing the total number of patient days by the total number of days in the period (D) Signup and view all the answers

What is the hospital death rate?

The hospital death rate is the ratio of all inpatient deaths in a hospital to the total number of discharges and deaths in the same period. Signup and view all the answers

What is the hospital autopsy rate?

The hospital autopsy rate is the ratio of all autopsies performed in a hospital to all inpatient deaths in that hospital. Signup and view all the answers

What is the maternal death rate?

The maternal death rate is the ratio of maternal deaths to the total number of obstetric discharges, including deaths. Signup and view all the answers

What is the average number of outpatient visits per day or per clinic session?

The average number of outpatient visits per day or per clinic session is the total number of visits divided by the total number of days or sessions in the period. Signup and view all the answers

Flashcards

Biostatistics

The application of statistical tools and concepts to biological sciences and medicine.

Data

Raw figures resulting from counting or measurement.