Time left 2:10:02 A study was conducted to compare the costs of supporting a family of four Canadians for a year in different foreign cities. The lifestyle of living in Canada on an annual income of $75,000 was the standard against which living in foreign cities was compared. A comparable living standard in Perth, Australia; and Mexico City was attained for about $64,000. Suppose an executive wants to determine whether there is any difference in the average annual cost of supporting her family of four in the manner to which they are accustomed in Perth and Mexico City. She uses the data, randomly gathered from 11 random families in each city. She found that the sample mean and standard deviation for Perth Australia was $67,381.82 and $ 2,296.44 respectively. The mean and Standard deviation for the sample of Mexico City was $ 63,436.36 and $ 1,568.61 respectively. She used an alpha of 0.01 to test this difference. She assumes the annual cost is normally distributed and the population variances are equal. What does the executive find? Test Statistic Main Formula #: Hypothesis Population: OOne OTWO OMultiple Null HO : Alternate HA: A a= Graph: Distribution: Decision Criteria (If Applicable) Left Critical Value: (If Applicable) Right Critical Value: Calculated Value Conclusion Conclusion There is sufficient evidence that both cities have cost of living