Suppose a machine is designed to detect faulty parts produce

Suppose a machine is designed to detect faulty parts produced on an assembly line. In testing each part, assume that the null hypothesis is that the part is not defective.

Explain what would constitute Type I and Type II errors in this context.

Solution

type I error

reject ho when Ho its true

in this case is reject that there are not defective, that means accept that there are defective when actually there are not defective

type II error

accept Ho when Ho its false

in this case is accept that there are not defective when actually there are deffective