EJERCICIOS DE INTERVALOS.pdf
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28 , 25 , 32 , 25 , 28 , 26 , 31 , 29 , 26 , 26 , 23 , 18 , 20 , 16 , 24 , 17 , 22 , 23 , 25 , 21 . ¯ x = 24.25 ∑ x 2 i = 12125 s ≈ 4.38 ±3% p p A B n A = 13 , ¯ x A = 4 , s A = 3 , n B = 11 , ¯ x B = 5 , s B = 2 .7 . n A n B σ A = σ B µ 1 − µ 2 N (µ ; σ ) σ n X N (µ ; σ = 4) (¯ x − 1.5, ¯ x + 1.5) µ ±0.01 λ λ
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Transcript of EJERCICIOS DE INTERVALOS.pdf
7/23/2019 EJERCICIOS DE INTERVALOS.pdf
http://slidepdf.com/reader/full/ejercicios-de-intervalospdf 1/1
28 , 25 , 32 , 25 , 28 , 26 , 31 , 29 , 26 , 26 , 23 , 18 , 20 , 16 , 24 , 17 , 22 , 23 , 25 , 21 .
x̄ = 24.25
∑x2
i = 12125
s ≈ 4.38
±3 %
p
p
A
B
nA = 13 , x̄A = 4 , sA = 3 , nB = 11 , x̄B = 5 , sB = 2.7 .
nA nB
σA = σB µ1 − µ2
N (µ ; σ ) σ
n
X
N (µ ; σ = 4)
(x̄− 1.5, x̄ + 1.5) µ
±0.01
λ
λ
