Using the 0.1 significance level, test whether there is a difference in the variation in the driving times on the two routes shown below.

Driving Times
Route 25	Route 75
52	59
67	60
56	61
45	51
70	56
54	63
64	57
	65

Step 1: State the Hypothesis

Ho: _1^2 = _2^2

Ha: _1^2 _2^2

Step 2: Select the significance level

In this case = 0.1

This is a two-tiled: test use /2

Step 3: Find the F Values:

Data to Data Analysis to F-Test Two Sample for Variances

Step 4: Decision Rule:

Reject the Ho when the value of F is greater than the vale of F crit

Step 5: Formulate Findings

4.2264 > 3.8660

Reject the Ho

Step 6: Reach your conclusion