Question

Find the margin of error for the given values of c, sigma, and n. cequals0.95, sigmaequals3.9, nequals100

Answer #1

Solution :

Given that,

Population standard deviation =
=3.9

Sample size = n = 100

c=0.95

= 1-0.95 =0.05

/2
=0.05/ 2= 0.025

Z/2
= Z_{0.025 = 1.960}

Z/2 = 1.960

Margin of error = E = Z/2
* (
/n)

= 1.960 * ( 3.9 / 100 )

= 0.764

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Eequals= _ (Round to three decimal places as needed.)

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The margin of error is?
(Round to one decimal place as needed.)

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