Type I error: Washers used in a certain application are supposed to have a thickness of 2 millimeters. A quality control engineer measures the thicknesses for a sample of washers and tests H 0 : μ = 2...

Type I error:
Washers used in a certain application are supposed to have a thickness of 2 millimeters. A quality control engineer measures the thicknesses for a sample of washers and tests
H
₀:
μ
= 2 versus
H
₁:
μ
≠ 2.