The acceptable level for insect filth in a certain food item is 5 insect fragments (larvae, eggs, body parts, and so on) per 10 grams. A simple random sample of 60 ten-gram portions of the food item is obtained and results in a sample mean of
xˉ=5.7 insect fragments per ten-gram portion. Complete parts (a) through (c) below.(a) Why is the sampling distribution of
xˉ approximately normal?
A. The sampling distribution of
xˉ is assumed to be approximately normal.B. The sampling...