
Andy C. answered 05/19/18
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4.9
(27)
Math/Physics Tutor
confidence coefficient for 99% is 2.58
2.58 * 19.4/sqrt(n) = 0.04
2.598*19.4/0.04 = sqrt(n)
( 2.598*19.4/0.04)^2 = n
1587676
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confidence coefficient for 90% is 1.64
(1.64*19.4/0.04)^2 = 632661.16
Niya I.
Hello. I have the same question as to the one above?
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11/10/20
Zulenka P.
hello how did you get 0.04 and i believe the second answer is wrong04/11/19