You are an environmental engineer researching whether dams

Last updated: 3/29/2024

You are an environmental engineer researching whether dams in poor condition are older than dams in adequate condition You notice that poor condition dams have a large spread of ages while most of the adequate condition dams were built in the 1950s and 1960s In qq plots of each sample you see that the data line up with the z scores pretty well forming a straight line Choose the best type of test of two means to assess this research question O One sided pooled variance t test Two sided unpooled variance t test O Two sided Mann Whitney U test One sided unpooled variance t test One sided paired t test One sided Mann Whitney U test