Homework: Chapter 8 Homework Score: 0 of 1 pt 401 8 (2 complete) HW Score: 18.75

Question

Homework: Chapter 8 Homework Score: 0 of 1 pt 401 8 (2 complete) HW Score: 18.75%, 1.50 f 8) tion 8.1.27 Question Help The acceptable level for insect fith in a certain food item is 2 insect fragments (arvae, eggs, body parts, and so on) per 10 grams. A simple random sample of 50 ten ram portions of the food item 1s obtained and results in a sample mean of 2 4 insect ragments per teraram portion omplete arts a through c below (a) Why is the sampling distribution of x approximately normal? O A. The sampling distribution is approximately normal because the population is normally distributed and the sample size is large enough O B. The sampling distribution is approximately normal because the popluation is normally distributed O C. The sampling distribution is approximately normal because the sample size is large enough. D. The sampling distribution is assumed to be approximately nonnal. dy

Explanation / Answer

(c) By using Central limit theorm as it states that as long as the sample is based on 30 or more observations, the sampling distribution of the mean can be safely assumed to be normal.

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