Garret Thinks His Car Battery Is Becoming Weak

Multiple Choice

Garret thinks his car battery is becoming weak.He doesn't want to be stranded on the highway, so he tests his battery and it tests fine.But when Garret begins his trip on the highway, the battery dies 20 miles down the road.The test results must have been wrong! What type of error is this?

A) Type I
B) Type II
C) sampling
D) systematic bias