You want to buy a new surfboard 7 years from now. You have $700 in the bank today. You can earn 10% on your savings. If the surfboard will cost $5,000, how much will you have to save every year to have enough to buy it

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