Suppose 5% of the Population Have a Certain Disease

question 15

Multiple Choice

Suppose 5% of the population have a certain disease.A laboratory blood test gives a positive reading for 95% of people who have the disease.What is the probability of testing positive and having the disease?

• A)0.0475
• B)0.95
• C)0.05
• D)0.9
• E)0.02

---

Definitions:

Sample Size

The total count of individual pieces of data used in a statistical analysis, reflecting the amount of information included in the study.

Confidence Limits

The upper and lower bounds of a confidence interval, typically set around a sample statistic, defining the range within which the true population parameter is expected to lie with a specified level of confidence.

Population Proportion

A measure that represents the fraction of individuals in a population who exhibit a particular attribute or characteristic.

Sample Size

Sample Size is the number of observations or data points collected to form a sample from a population for statistical analysis.