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Let
X
represent the full height of a certain species of tree. Assume that
X
has a normal probability distribution with mean 127.2 ft and standard deviation 27.5 ft.

You intend to measure a random sample of
n
=
192
trees. The bell curve below represents the distibution of these sample means. The scale on the horizontal axis is the standard error of the sampling distribution. Complete the indicated boxes, correct to two decimal places.

Respuesta :

ogorwyne

We have Ux =  127.2 ft while we have σx =  1.985 ft

How to solve for the values

The normal distribution =  127.2 ft

The standard deviation = 27.5 ft

The random sample n is given as n = 192 trees.

sd / √n

= 27.5/√192

= 1.985 ft

Hence we have Mx = 127.2 ft

σx =  1.985 ft

127.2 + 2(1.985) = 131.17

127.2 - 2(1.985) = 123.23

Read more on standard deviation here: https://brainly.com/question/475676

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