Question: I try doing it by myself couldn't get it right please help 2. The salary that a typical Trade-Tech student taking a vocational course at

I try doing it by myself couldn't get it right please help

2. The salary that a typical Trade-Tech student taking a vocational course at Trade will make after graduation has a mean salary of $ 20,000 and a standard deviation of $8,000. Do the following: Z = Vn (X -1) a) If a student in a vocational course is chosen at random from among 49 students , what is the probability that the sample mean salary will exceed $18,000 7 ( 8 points ) b) Does the central Limit Theorem apply in part a)? Explain ( 3 pts )

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