Question

Cheap airline and Discount airline fly around the U.S. from their Hub in Sanford Florida. A sample of two-way ticket price of 10 cities where these two companies fly is taken.

City	Cheap Airline	Discount Airline
Panama City, Florida	$230	$230
Reno, Nevada	$190	$230
Los Angeles, California	$100	$200
Syracuse, New York	$130	$99
Seattle, Washington	$230	$430
Miami, Florida	$170	$130
San Antonio, Texas	$220	$330
Chicago, Illinois	$100	$330
Atlanta, Georgia	$100	$130
Minneapolis, Minnesota	$230	$330

At 95 %, is there a statistical difference between these two populations?   

a. Not enough information is given to answer this question

b. The null hypothesis should be rejected

c.The null hypothesis should not be rejected

d.I have no idea

Answer 1

	Sample 1	Sample 2	Difference = Sample 1 - Sample 2
	230	230	0
	190	230	-40
	100	200	-100
	130	99	31
	230	430	-200
	170	130	40
	220	330	-110
	100	330	-230
	100	130	-30
	230	330	-100
Average	170	243.9	-73.9
St. Dev.	57.735	108.591	91.56
n	10	10	10

Option B is correct choice

b. The null hypothesis should be rejected