Question 1 (20 marks = 5 + 3 + 1 + 6 + 1+ 4)
Excel files ExchangeRates-Monthly–[url removed, login to view] and ExchangeRates-Monthly–[url removed, login to view] contain monthly data on the Australian dollar (AU$) exchange rates against major currencies for the period July, 1969 to August, 2015. (source: Reserve Bank of Australia, [url removed, login to view] ).
Question 2 (20 marks = 2 + 2 + 3 + 3 + 2 + 2 + 2 + 4)
Five years ago it was established that the mean time to travel between from a particular suburb to city is 30
minutes. You want to test whether the mean time has changed. To investigate this hypothesis you plan to
take a sample of 20 travel times.
Question 3 (20 marks = 3+ 3 + 2 + 4 + 4 + 2 + 2)
An event organiser would like to predict the number of ‘portaloo’ lavatories required for outdoor
entertainment events based on the volume of food to be consumed at the event. The organiser has collected
the data given in GB513Assignment-Q3.xls.
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