Question 51 / 1 pointExpedia would like to test the hypothesis that the average roundtrip airfare between Philadelphia and Paris is higher for a flight originating in Philadelphia when compared to a flight originating in Paris. The following data summarizes the sample statistics for roundtrip flights originating in both cities. Assume that the population variances are equal.Originating CityPhiladelphiaParisSample mean$1,240$1,060Sample size1519Sample standard deviation$270$240Excel file has the same data as in the table above 10 Q 4_5 Philadelphia_Paris_airfare.xlsxIf Population 1 is defined as flights originating in Philadelphia and Population 2 is defined as flights originating in Paris, the 90% confidence interval for the difference in population means is ________.(-$38.95, $398.95)($136.21, $223.79)($31.65, $328.35)($92.42, $267.58)

Reference: PHStat/Two Sample Tests (summarized data)/ Pooled-Variance t TestQuestion 61 / 1 pointYou have been assigned to test the hypothesis that the average number of hours per week that an American works is higher than the average number of hours per week that a Swede works. The following data summarizes the sample statistics for the number of hours worked per week for workers in each country. Assume that the population variances are unequal.AmericanSwedeSample mean32.7 hours28.2 hoursSample size1512Sample standard deviation5.1 hours6.0 hoursExcel file with the above data : 10 Q 6_7_American_Swede_Hours.xlsxIf Population 1 is defined as American workers and Population 2 is defined as Swedish workers, the correct hypothesis statement for this hypothesis test would beH0: μ2 - μ1≥ 0; H1: μ2- μH0: μ1 - μ2< 0; H1: μ1- μH0: μ1 - μ2= 0; H1: μ1- μH0: μ1 - μ2≤ 0; H1: μ1- μQuestion 71 / 1 pointYou have been assigned to test the hypothesis that the average number of hours per week that an American works is higher than the average number of hours per week that a Swede works. The following data summarizes the sample statistics for the number of hours worked per week for workers in each country. Assume that the population variances are unequal.AmericanSwedeSample mean32.7 hours28.2 hoursSample size1512Sample standard deviation5.1 hours6.0 hoursExcel file with above data : 10 Q 6_7_American_Swede_Hours.xlsx1< 0.2≥ 0.2≠ 0.2> 0.

If Population 1 is defined as American workers and Population 2 is defined as Swedish workers, the p-value for this hypothesis test would be between ________.