Question

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 Dallas 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).

	Mean	Standard Deviation
Miles (x)	1650.4	1074.4
Costs (y)	291	111.71
r = 0.9352

Find a simple linear regression line to predict the cost of the flight by using the distance.

(Round your answers to 4 decimal places)

	a.
	b.
	c.	None of the choices
	d.
	e.

Answer 1