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...

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.