Respuesta :

The confidence interval 219.9 ± 57.6 is just equal to:

219.9 - 57.6 = 162.3

219.9 + 57.6 = 277.5

The confidence interval 219.9 ± 57.6 can also be written as between 162.3 and 277.5. In trilinear inequality, it is:

[tex]162.3<\mu<277.5[/tex]

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