Question

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 x = 5.7 insect fragments per ten-gram portion Complete parts (a) through (c) below. (a) Why is the sampling distribution of x approximately normal? A. The sampling distribution of x is approximately normal because the sample size is large enough. The sampling distribution of x is approximately normal because the population is normally distributed and the sample size is large enough OC. The sampling distribution of x is assumed to be approximately normal D. The sampling distribution of x is approximately normal because the population is normally distributed 5? (b) What is the mean and standard deviation of the sampling distribution of x assuming u = 5 and 6 = H= 5 (Round to three decimal places as needed) 0:- (Round to three decimal places as needed.)

Answer 1

Here we have S.7 6 =12.236 e