Mathematics, 22.02.2020 02:15 bakoeboo
The acceptable level for insect filth in a certain food item is 2 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 overbarequals2.5 insect fragments per ten-gram portion. Complete parts (a) through (c) below.
a. Why is the sampling distribution of x approximately normal?
b. What is the mean and standard deviation of the sampling distribution of assuming t Sand a Mu x = 5 (Round to three decimal places as needed.) Sigma x = 289 (Round to three decimal places as needed.)
c. What is the probability a simple random sample of 60 ten-gram portions of the food item results in a mean of at least 5.8 insect fragments? P(x > = 5.8)= (Round to four decimal places as needed.)
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The acceptable level for insect filth in a certain food item is 2 insect fragments (larvae, eggs, bo...
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