Question
The distribution of actual weights of 8-oz chocolate bars produced by a certain machine is normal with mean 8.1 ounces and standard deviation 0.13 ounces.
The distribution of actual weights of 8-oz chocolate bars produced by a certain machine is normal with mean 8.1 ounces and standard deviation 0.13 ounces.
(a) What is the probability that the average weight of a bar in a Simple Random Sample (SRS) with 4 of these chocolate bars is between 7.92 and 8.24 ounces?
ANSWER:
(b) For a SRS of 4 of these chocolate bars, what is the levelLsuch that there is a 1% chance that the average weight is less thanL?
ANSWER:
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Probability With Applications and R
Authors: Robert P. Dobrow
1st edition
1118241257, 1118241258, 978-1118241257
