
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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The acceptable level for insect filth in a certain food item is 3 insect fragments (larvae, eggs, body parts, and so on) per 10 grams. A simple random sample of 40 ten-gram portions of the food item is obtained and results in a sample mean of x=3.8 insect fragments per ten-gram portion.
(c) What is the probability a simple random sample of 40 ten-gram portions of the food item results in a mean of at least 3.8 insect fragments?
P (x≥3.8) =
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