Question: 8.47 Given a random sample of size 30 from a normal distribution, find k such that, (a) P(1.699 < T < k) = 0.945; (b)

8.47 Given a random sample of size 30 from a normal distribution, find k such that,

(a) P(−1.699 < T < k) = 0.945;

(b) P(k < T < 2.045) = 0.025;

(c) P(−k < T < k) = 0.98.

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