(See Steps) Let X i ’s be a random sample of size n from a population ~N(2,4). How large must n be in order that P(1.9 ≤ X#772; ≤ 2.1) ≥ 0.99
Question: Let X i ’s be a random sample of size n from a population ~N(2,4). How large must n be in order that P(1.9 ≤ \[\overline{X}\] ≤ 2.1) ≥ 0.99 ?
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