A simple random sample of people is collected and their blood pressures are measured by one of several lab assistants. One of the lab assistants incorrectly reads the blood pressure gauge and records erroneous data. Which of the following types of errors is present here?
A) Margin
B) Nonsampling
C) Sampling
D) Nonresponse

Question

Quizplus · Accepted Answer

This is an example of a nonsampling error, which occurs due to factors not related to the process of selecting the sample, such as measurement errors or recording errors. In this case, the incorrect reading of the blood pressure gauge by one of the lab assistants is a nonsampling error.

A Simple Random Sample of People Is Collected and Their