Designing Epidemiological Studies Flashcards
1
Q
What is a statistic?
A
Statistic = a fixed value, derived from a sample that estimates the value in the population (so estimates parameters!)
2
Q
What is a parameter?
A
Parameter = a fixed, often unknown value, which describes an entire population
3
Q
What is a point estimate?
A
Point estimate = estimate of a parameter (is a statistic!)
4
Q
What is a confidence interval?
A
Confidence interval = the range of values in which there is 95% confidence that the true value lies within these