4. Explain in plain language what is meant by "the sampling distribution of the sample mean." (2 marks] 5. Suppose a population has mean p and standard deviation o. What are the mean and standard deviation of all sample means, for samples of size n? (2 marks} 6. Do 1your answers to question 5 depend on population shape? What about the sample size? { 2 marks) 7. There are two different conditions, under which the sampling distribution ofthe sample mean is approximately normal. What are these conditions? (2 marks]