Question: Can you please explain this step by step. Thank you. An engineer developed software to see whether a person is an adult (older than 21

Can you please explain this step by step. Thank you.

An engineer developed software to see whether a person is an adult (older than 21 years old) or a child from the picture of the person. The following contingency table (i.e., a table for headcounts) summarizes the results. Let the null hypothesis be the person is actually an adult.

Diagnosed as an adult diagnosed as a child

Actually adult 190 30

Actually child 20 60

(a) Calculate the Type I error.

(b) Calculate the Type II error.

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