In the market for a particular pair of shoes, Jena is willing to pay $75 for a pair while Jane is willing to pay $85 for a pair. The actual price that each has to pay for a pair of shoes is $65. What is the combined amount of consumer surplus for Jena and Jane?

Aresearcher developing scanners to search for hidden weapons at airports has concluded that a new scanner isis significantly better than the current scanner. he made his decision based on a test using alpha equals 0.025 .α=0.025. would he have made the same decision at alpha equals 0.10 question mark α=0.10? how about alpha equals 0.01 question mark α=0.01? explain