European City	Change in Hotel Costs	U.S. City	Change in Hotel Costs
Ljubljana	-0.009	Birmingham	0.074	Hotel prices worldwide are projected to increase by 3% next year, but is there a difference between Europe and US? Suppose we have projectd changes in hotels cost for 47 randomly selected major European cities and 53 randomly selected major American Cities.
Geneva	0.000	Pittsburgh	0.089
Zagreb	0.060	Indianapolis	-0.013
Stockholm	0.041	Norfolk	0.070
Tirana	0.082	Boston	0.077
Riga	0.076	Winston-Salem	0.074
Istanbul	0.021	Stockton	0.021
Bucharest	0.073	Laredo	0.024
Budapest	0.045	Corpus Christi	0.088	Part a
Minsk	0.023	Portland	0.020	On the basis of the sample results, can we conclude that the mean change in hotels rates in Europe and US are different ? Develop appropriate null and alternative hypotheses.
Rome	0.033	St. Paul	0.061
Antwerp	0.012	Memphis	0.086
Reykjavik	-0.002	Virginia Beach	0.052
Dsseldorf	0.044	Newark	-0.001
Krakw	0.071	Austin	0.077
Frankfurt	-0.002	San Francisco	0.102
Vilnius	0.057	Greensboro	0.053	Part b
Timisora	0.005	Nashville-Davidson	0.030	Use alpha = 0.01, what is your conclusion?
Helsinki	0.072	Chicago	0.085
Odessa	0.084	El Paso	0.027
Pristina	0.006	Omaha	0.028
Tallin	0.039	San Diego	0.080
Banja Luka	0.082	Madison	0.105
Chisinau	0.015	Fort Worth	0.024
Belfast	0.032	Cincinnati	0.085
Zurich	0.041	Tampa	0.001
Copenhagen	-0.005	Sacramento	0.000
Bratislava	0.020	Honolulu	0.047
Ankara	0.057	St. Petersburg	0.096
Athens	0.069	Lincoln	0.006
Brussels	0.059	Oakland	0.082
Kryvy Rig	0.073	St. Louis	0.064
Volgograd	0.038	Lubbock	0.018
Novi Sad	0.079	Wichita	0.003
Belgrade	-0.016	New York City	0.043
Tblisi	0.052	Orlando	0.071
Zagreb	-0.008	San Jose	0.079
Sarajevo	0.083	Atlanta	0.000
St Petersburg	0.071	Dallas	0.106
Kiev	0.012	Cleveland	0.015
Glasgow	-0.004	Tulsa	0.102
Split	0.055	Baton Rouge	0.089
Sofia	0.057	Jacksonville	0.057
Amsterdam	0.019	Minneapolis	0.064
Skopje	0.053	Detroit	-0.001
Vilnius	0.036	Los Angeles	0.027
Essen	0.055	Anchorage	-0.021
		Jersey	0.016
		Washington	0.035
		Durham	0.057
		Phoenix	0.010
		Anaheim	-0.011
		Philadelphia	0.020