The Australian Bureau of Statistics reveals that the average annual…

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Question Answered step-by-step The Australian Bureau of Statistics reveals that the average annual… The Australian Bureau of Statistics reveals that the average annual expenditure of Australian households on food and drinks is $13,260. Assume that the annual expenditure on food and drink of Australian households is normally distributed and that the standard deviation is $1780.   i. What is the probability that a randomly selected Australian household spends more than $12,000 per year on food and drinks?          ii. What is annual expenditure of Australian households on food and drinks in the lower 20% of the above normal distribution?             iii. If 30 Australian households are randomly selected, what is the probability that the sample mean annual expenditure will lie between $13,000 and $13,800?    Math Statistics and Probability MATH 1029 Share QuestionEmailCopy link Comments (0)

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