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 60 ​ten-gram portions of the food item is obtained and results in a sample mean of x overbarequals2.2 insect fragments per​ ten-gram portion. Complete parts​ (a) through​ (c) below.