Choose the letter of the best/correct answer.

1. The distribution of student weights in a public high school has a mean of = 55.5 and a standard deviation of = 7.5. The weights of students do not follow a normal distribution. The research coordinator of the school randomly sampled a total of 500 students from this population. Can you say that the sampling distribution is approximately normal? A. yes B. no C. only sometimes D. lacks more information
2. An unknown population has a mean of 3500 and a standard deviation of 60. If 5,000 units were randomly taken from such a population, what can you say about the shape of the sampling distribution? A. elliptical B. linear C. bell-like D. parabolic
3. What is the mean of the sampling distribution of the sample means if a random sample of size 64 is taken from a population with a mean of 35 and a standard deviation of 7? A. 13 B. 7 C. 5 D. 35
4. What is the standard deviation of the sampling distribution of the sample means if a random sample of size 64 is taken from a population with a mean of 35 and a standard deviation of 7? A. 0.14 B. 4.375 C. 0.875 D. 0.5475