Rabbitfoot Community Bank

Processing Times

Rabbitfoot Competitor

33.9 40.0

34.8 39.6

35.0 38.5

39.1 40.0

40.1 42.4

37.7 38.6

39.0 42.3

35.7 34.9

40.2 33.0

43.9 41.4

38.0 38.3

34.3 41.6

41.3 41.5

35.4 37.9

39.3 40.0

35.9 43.1

41.5 40.5

37.9 41.8

36.3 41.6

43.0 40.9

39.1 40.9

35.9 40.3

40.5 39.8

34.9 40.8

38.2 36.4

39.1 34.6

36.6 41.1

38.5 34.4

38.3 37.0

39.5 41.4








Rabbitfoot Community Bank

Rabbitfoot Community Bank makes a large number of home equity loans each year. The vice
president of home administration wishes to determine if their time for paperwork processing is
lower than the average time of their top competitor. Data for a sample of 30 loans taken at
Rabbitfoot Bank are provided in the accompanying MGMT_368_Case_1.xlsx file. Data of 36 loan
applications obtained from the competitor bank are also provided in the same Excel file.

Please upload your individual Microsoft Excel solution file, with each question answered in
separate sheets of the same file, on Blackboard by the due date.


1) Using the Excel Descriptive Statistics tool from the Data Analysis tool-pack summarize the

sample data from the Rabbitfoot Community Bank and its competitor separately. (5 + 5 = 10

2) Test the null hypothesis that Rabbitfoot’s average processing time is greater than or equal to
the competitor’s average, versus the alternative hypothesis that the bank’s average processing
time is less than that of the competitor at 5% significance level. Use the Excel t-Test: Two-
Sample Assuming Equal Variances tool from the Data Analysis tool-pack. Specifically answer
the following:

a) Write down the hypothesis statements to be tested. Define any statistical notations you are

using in your hypothesis statements. (5 points)
b) Is this a two-tailed test, an upper tailed test or a lower-tailed test? (1 points)
c) What is the value of the test statistic? (3 points)
d) What is the p-value of the test? (3 points)
e) What is the critical value of this test? (3 points)
f) What is the conclusion of your hypothesis test? (5 points)

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