4. Answer the following. Feel free to use the Excel Demo from the course website called "alpha and beta". a. What happens to the probability of type II error as the difference between mu_0 and the actual mean increases?

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Q: 1. Let A and B be two events such that P(A) = 0.4, P(B) = 0.7, P(A U B) = 0.9 a) Find P(A n B). b)…

A: Solution-: Given: P(A)=0.4,P(B)=0.7,P(A∪B)=0.9 We find P(A-B)=?

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