Question

Asked Oct 25, 2019

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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.)

Step 1

It is given that confidence level is 0.90, standard deviation is 7.3 and margin of error E is 2.

Step 2

Here,

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