Ground or Air The earths temperature canbe measured using

QUESTION:

Ground or Air? The earths temperature canbe measured using either ground-based sensors orinfrared-sensing devices mounted in aircraft or spacesatellites. Ground-based sensoring is very accurate buttedious, while infrared-sensoring appears to introducea bias into the temperature readingsthat is, the averagetemperature reading may not be equal to the averageobtained by ground-based sensoring. To determinethe bias, readings were obtained at five different locationsusing both ground- and air-based temperaturesensors. The readings (in degrees Celsius) are listedhere:Location Ground Air1 46.9 47.32 45.4 48.13 36.3 37.94 31.0 32.75 24.7 26.2a. Do the data present sufficient evidence to indicate abias in the air-based temperature readings? Explain.b. Estimate the difference in mean temperaturesbetween ground- and air-based sensors using a 95%confidence interval.c. How many paired observations are required toestimate the difference between mean temperaturesfor ground- versus air-based sensors correctto within .2C, with probability approximatelyequal to .95?