What is the probability of getting an average value less than or equal to that produced...
What is the probability of getting an average value less than or equal to that produced by the data?
μ= 19
σ= 2.1
Data:
17,15,16,14,18,23,12,18.3,19,20.1
Homework Answers
from the given data we have
xbar = 17.24
n = 10
P(X <= 17.24)
= P(z < (17.24 - 19)/(2.1/sqrt(10)))
= P(z < -2.65)
= 0.004
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