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Question 5 A sample of nine flights from Australia Melbourne International Airport and eight from New Zealand Christchurch International Airport reported the following numbers of no- shows for the flights. Melbourne Christchurch Melbourne Christchurch 11 13 20 9 15 14 24 17 10 10 22 21 18 8 25 11 16 Table 05 (a) At 5% significance level, use a Wilcoxon rank-sum test to test if there are more no-shows for the flights originating in Melbourne. (b) Why would a parametric test like the two-sample t-test be unsuitable in this case