A newspaper editor wants to investigate whether the residents if+two+countries+support+the+propos al+to+build+s+wind+farm.+she+plans+ to+take+an+srs+of+30+residents+from +the+southern+county+and+40+residen ts+from+the+northern+county,+then+l ook+at+the+difference+between+the+p roportions+of+residents+that+suppor t+each+sample.+suppose+that+65%25+o f+the+residents+of+the+southern county and 52%, 25 of the residents of the northern county approve. What are the mean and standard deviation of the sampling distribution of the difference in sample proportion

Which of the following situations would most likely occur if a human-induced event caused the ocean water to become the same temperature around the world? deep ocean current circulation would increase salt distribution around the world's oceans. surface ocean current circulation would distribute heat around land masses at a faster rate. new, fresher water would float on top of dense salt water and limit thermohaline circulation. some land masses in the northern hemisphere would start to warm up over time, melting snow and ice. runoff of surface freshwaters and rainfall would no longer have an effect on the salinity of ocean waters.