munoz29341 munoz29341

15-03-2024
Mathematics

contestada

In a sample of 125 hip surgeries of a certain type, the average surgery time was 137.3 minutes with a standard deviation of 22.8 minutes. Construct an 80% confidence interval for the true mean surgery time.
a) (134.7, 139.9)
b) (136.0, 138.6)
c) (135.5, 139.1)
d) (135.8, 138.8)

Respuesta :

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