An engineering company was hired to dig an underground tunnel directly from point A to point B, which was the distance of 1.4 miles. By mistake, however, they tunneled from point A to point C. then they tunneled from point C to point B. If tunneling costs about $120 million per mile, about how much money was wasted? show how you found your answer. (Note: 1 mile= 5,280 feet.)

At wind speeds above 1000 centimeters per second (cm/sec), significant sand-moving events begin to occur. wind speeds below 1000 cm/sec deposit sand and wind speeds above 1000 cm/sec move sand to new locations. the cyclic nature of wind and moving sand determines the shape and location of large dunes. at a test site, the prevailing direction of the wind did not change noticeably. however, the velocity did change. fifty-nine wind speed readings gave an average velocity of x = 1075 cm/sec. based on long-term experience, σ can be assumed to be 245 cm/sec. (a) find a 95% confidence interval for the population mean wind speed at this site. (round your answers to the nearest whole number.) lower limit cm/sec upper limit cm/sec