Biostatistics Review Question 8

Question

Indicate whether the following statements are true or false:

1. Unlike bias and confounding, random errors are unsystematic
2. Reducing random error also reduces errors from bias and confounding.
3. Precise exposure data can be achieved by repeating the exposure measurements
4. Increasing the sample size decreases the chance of selecting an unrepresentative sample
5. A statistically significant finding always has public health significance

Link to Biostatistics Review Answers

Source: Aschengrau and Seage 3rd edition (Chpt 12, Q8, pg. 346)