Gregory decides to drive to toronto to visit a college friend. after crossing the canadian border, he discovers that the speed limits are posted in kilometers rather than miles per hour. luckily, gregory remembers that 1 kilometer equals 1.6 miles and that to convert kilometers to miles, he can multiply the number of kilometers by 0.6214. this method would be an example of a problem-solving strategy called:

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