Students of a large university spend an average of $5 a day on…
Question Answered step-by-step Students of a large university spend an average of $5 a day on… 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. Consider x¯, the average expenditure of the sample. What is E(x¯) and Var(x¯)? what is the probability that a randomly picked student’s expenditure is less than $6, that is, P(X<6)?what is the probability that the mean expenditure of the sample is more than $5.5, that P(x¯>5.5)? Math Statistics and Probability BAT 2301 Share QuestionEmailCopy link Comments (0)
