c.) Use a normal approximation to find the Pr{76 < X < 84}.

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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c.) Use a normal approximation
to find the Pr{76 < > < 84}.
Transcribed Image Text:c.) Use a normal approximation to find the Pr{76 < > < 84}.
Suppose a random sample
of n = 64 measurements is
selected from a population
with mean µ = 80
and variance (not standard
deviation) 02 = 256.
a.) Calculate the mean and
standard deviation of the
sampling distribution of the
sample mean X. That is,
calculate E[X] = μx and ox.
b.) Use a normal approximation
to find the Pr{X < 77}.
8.
Transcribed Image Text:Suppose a random sample of n = 64 measurements is selected from a population with mean µ = 80 and variance (not standard deviation) 02 = 256. a.) Calculate the mean and standard deviation of the sampling distribution of the sample mean X. That is, calculate E[X] = μx and ox. b.) Use a normal approximation to find the Pr{X < 77}. 8.
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