A group of economists wants to compare the mean annual leave among the US and EU workers. Two samples of US and EU workers were obtained independently and analyzed. The sample of 45 US workers had the mean annual leave of 18.8 days and the standard dediation 9.05 days. The sample of 31 EU workers had the mean annual leave of 25.6 days and the standard deviation 5.38 days. Use 4% level of significance to decide whether there is sufficient evidence that mean annual leave of US workers is less than mean annual leave of EU workers. Procedure: Select an answer Assumptions: (select everything that applies) Normal populations The number of positive and negative responses are both greater than 10 for both samples Population standard deviations are known Simple random samples Population standard deviation are unknown and not assumed equal Sample sizes are both greater than 30 Independent samples Paired samples Population standard deviation are unknown but assumed equal Part 1: Hypothesis Test..…

A group of economists wants to compare the average annual leave among the US and EU workers. Two samples of US and EU workers were obtained independently and analyzed. The sample of 37 US workers had the average annual leave of 18 days and the standard deviation 9.07 days. The sample of 40 EU workers had the average annual leave of 26.8 days and the standard deviation 5.11 days. Use 10% level of significance to decide whether there is sufficient evidence that average annual leave of US workers is less than average annual leave of EU workers. Procedure: Two means T Hypothesis Test Assumptions: (select everything that applies) Population standard deviations are known Population standard deviation are unknown but assumed equal Independent samples Paired samples The number of positive and negative responses are both greater than 10 for both samples Sample sizes are both greater than 30 Population standard deviation are unknown and not assumed equal Normal populations Simple random samples…

LEAVE! A group of economists wants to compare the average annual leave among the US and EU workers. Two samples of US and EU workers were obtained independently and analyzed. The sample of 37 US workers had the average annual leave of 18 days and the standard deviation 9.07 days. The sample of 40 EU workers had the average annual leave of 26.8 days and the standard deviation 5.11 days. Use 10% level of significance to decide whether there is sufficient evidence that average annual leave of US workers is less than average annual leave of EU workers. Procedure: Two means T Hypothesis Test Assumptions: (select everything that applies) Population standard deviations are known Population standard deviation are unknown but assumed equal Independent samples Paired samples D The number of positive and negative responses are both greater than 10 for both samples Sample sizes are both greater than 30 Population standard deviation are unknown and not assumed equal Normal populations Simple random…