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A random sample of 15 customers in two different banks were selected and their wait times (in minutes) are given below. Use this data to complete parts (a) through (d).
Bank A: 3.46, 3.26, 4.47,6.01,0.31,5.08,6.56,6.17
Bank B: 9.64,5.87,8.11,5.84,8.76,3.74,8.16,8.27,10.41,6.78,5.55,4.05,6.16,9.89,5.43
a. Is there evidence of a difference in the variability of the waiting time between the two banks? (Use a=0.10.)
Conduct the analyses by calculating the F-STAT test statistic