Answer Happy

3. An analyst wants to determine whether the cost of a flight depends on the distance. She collects a set of data of the round-trip fare for flights between Boston and some other cities on major airlines and the distance between cities. The following table gives the descriptive statistics of the distance (in miles) and the cost (in dollars). (Round your calculations to 4 non-zero decimal places) Mean Standard Deviation Miles) 16485 10724 Costs 284 110.71 T=0.9163 (a) Find the regression line of the cost of a flight in terms of the miles traveled (5 points) (b) Suppose someone flies 500 miles, what will be the estimated cost for him/her? (2 points) c) Circle the correct Coefficient Determination (r) and interpretation. (2 points) A. ris 83.96%: 83.96% of total variations on the y-variable can be explained by the regression analysis B. r is 91.63%: 91.63% of total variations on the y-variable can be explained by the regression analysis C. r? is 91.63%: There is a strong positive linear relation between the distance and the cost D. ris 83.96%; There is a strong positive linear relation between the distance and the cost