A research engineer for a tire manufacturer is investigating tire life for a new rubber compound and has built 16 tires and tested them to end-of-life in a road test. The sample mean and standard deviation are 60,139.7 and 3394.11 kilometers. Can you conclude, using that the standard deviation of tire life is less than 4000 kilometers

What are the vertical asymptotes of the function f(x) =5x+5/x2 + x-2

You paint a 1/2 of a wall in 1/4 hour. how long will it take you to paint one wall

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.