4 5 6 7 Find the minimum sample size n needed to estimate μ for the...

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Answer 1

Answer #1

Answer:

By using given data,

C=0.95, sigma=6.3 and E=2, then

Z=1.96

Minimum sample size = (Z $\alpha$ /2 * $\sigma$ / E)²

n= ((1.96 *6.3) / 2)²

n= 38.11

Minimum sample size(n) = 38 (Rounded up to nearest integer)

Answer 2

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