Question

You operate a travel advisory website, and want to give your users at 5 airports. You record average delay times for each airline, at each airport. Then you run a 2-way ANOVA and get the advice on airline timeliness. You select 4 airlines. and monitor their delays ource of Variance Airline MS Step 7 of 7: 1s the effect of Airports significant at the 0.01 level of significance? Answer 1 Point O No O It cannot be determined

Answer 1

The complete ANOVA table is given below

Source	SS	DF	MS	F	P.Value
Airlines	349	3	116.33	10.9	0.00096
Airport	262	4	87.33	8.18	0.00201
Error	32	12	10.67
Total	643	19

Where degree of freedom df for Airline = 4-1 = 3, df for Airport = 5-1 = 4, df for Total= 4x5 -1 = 20-1 = 19

and df for Error = 3x4 = 12.

MS = SS/df

F = MS/MS_error

Step 7 of 7) Since calculated P.value for the effect of airport = 0.00201 which is less then 0.01, therefore the effect is significant at 0.01 level of significance.

Step 6 of 7) Since calculated P.value for the effect of airline = 0.00096 which is less then 0.01, therefore the effect is significant at 0.01 level of significance.

Step 5 of 7) Since critical value for airline is 5.95.