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Perform the appropriate hypothesis test for determining whether there is a difference in the proportion of large retailers that use advanced statistical forecasting techniques and small retailers that use advanced statistical forecasting techniques.  You have the following sample data:

(a) Perform the appropriate hypothesis test to determine if there is a difference.  Assume a 10% level of significance.

(b) Create the appropriate 90% confidence interval for this problem.  Do you arrive at the same conclusion as in Part (a) above?