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Given a normal distribution with ?=50and ?=5

by | Dec 1, 2023 | Posted Questions

Given a normal distribution with ?=50and ?=5, and given you select a sample of n=100?, complete parts? (a) through? (d).

a.What is the probability that Upper X overbar

X is less than49??

?P( overbarX<49?)=

b.What is the probability that Upper X overbar

X is between49and49.5?

?P(49<overbarX<49.5?)=

c.What is the probability that Upper X overbar

X is above50.2??

?P(overbarX>50.2?)=

d.There is a40?% chance that overbar X is above what? value?

overbarX=

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