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

3.52

3.25

4.34

6.14

0.32

5.06

6.37

6.27

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3.73

4.17

5.65

3.06

5.135

4.81

2.38

Bank B

9.56

5.88

8.05

5.83

8.76

3.78

8.17

8.34

10.51

6.78

5.66

4.16

6.07

9.82

5.51

Is there evidence of a difference in the variability of the waiting time between the two banks? (Use alpha equals 0.10 . right parenthesis=0.10.)

Determine the hypotheses. Choose the correct answer below.

A.

H0:

sigma Subscript 1 Superscript 221less than or equalssigma Subscript 2 Superscript 222

H1:

sigma Subscript 1 Superscript 221greater than>sigma Subscript 2 Superscript 222

B.

H0:

sigma Subscript 1 Superscript 221equals=sigma Subscript 2 Superscript 222

H1:

sigma Subscript 1 Superscript 221not equalssigma Subscript 2 Superscript 222

C.

H0:

sigma Subscript 1 Superscript 221not equalssigma Subscript 2 Superscript 222

H1:

sigma Subscript 1 Superscript 221equals=sigma Subscript 2 Superscript 222

D.

H0:

sigma Subscript 1 Superscript 221greater than or equalssigma Subscript 2 Superscript 222

H1:

sigma Subscript 1 Superscript 221less than<sigma Subscript 2 Superscript 222