Question: Please do these questions, will make sure to leave good remarks ! QUESTION 4 Question 2: Students of a large university spend an average of

Please do these questions, will make sure to leave good remarks !

QUESTION 4 Question 2: Students of a large university spend an average of $5 a day on lunch. The standard deviation of the expenditure is $3. A simple random sample of 36 students is taken (2a) What is the expected value of the sampling distribution of the sample mean? QUESTIONS (25) What is the probability that the sample mean will be at least $4? (Use the 2-table)

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