Question

Find the minimum sample size n needed to estimate
mu
μ for the given values of​ c,
sigma
σ​, and E.

c
equals
=
0.90

sigma
σ
equals
=
7.3
 and E
equals
=2
Assume that a preliminary sample has at least 30 members.

n=?


​(Round up to the nearest whole​ number.)

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