Solutions Statistics

You are concerned that airport managers may not be receiving enough quantitative instruction in curr

Question: You are concerned that airport managers may not be receiving enough quantitative instruction in current aviation management degree programs. Specifically, you want to know if Embry-Riddle graduates possess sufficient quantitative skills to conduct the mathematical analyses needed for making superior decisions regarding the management of airports. You decide to see if there is any difference between the quantitative scores of airport management graduates from Embry-Riddle and the scores of airport management graduates from other institutions on the GMAT.

ERAU School A School B School C

580 500 530 450

550 480 560 500

490 575 430 420

550 350 450 580

430 450 500 450

Descriptive

	N	Mean	Std. Deviation	Std. Error	95% Confidence Interval for Mean		Minimum	Maximum
	N	Mean	Std. Deviation	Std. Error	Lower Bound	Upper Bound	Minimum	Maximum
1.00	5	520.0000	60.00000	26.83282	445.5002	594.4998	430.00	580.00
2.00	5	471.0000	81.88406	36.61967	369.3275	572.6725	350.00	575.00
3.00	5	494.0000	54.12947	24.20744	426.7894	561.2106	430.00	560.00
4.00	5	480.0000	62.84903	28.10694	401.9626	558.0374	420.00	580.00
Total	20	491.2500	63.07629	14.10429	461.7294	520.7706	350.00	580.00