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Referenc: Course : Analysis of experience plans MAT2375 Question: Either a random sample of size 19: X 1 , ..., X 19 of a law

Referenc: Course : Analysis of experience plans MAT2375

Question: Either a random sample of size 19: X1, ..., X19 of a law normal of mean and variance x2. We wanted to do the following test: H0: x2= 30 against H0: x2= 80

(A) What is the variable the statistic) on which we will base ourselves?

(B) Determine the critical region of rejection of the null hypothesis with a threshold of meaning of 5%.

(C) Determine the probability of committing a type II error.

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