A boat manufacturing company wants to know how long people own their boats before purchasing a new one. A random sample of 160 boat owners showed that, on average, they own a boat for 8.5 years with standard deviation of 3.55 years, before they purchase a new boat. Using 99% confidence interval what is the mean length of boat ownership for all boat owners

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

Can someone me out here number 4 plz

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with