Perform the appropriate hypothesis test for determining whether there is a difference in the proportion of...

 

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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: # That Used Adv. Statistical Sample Size Forecasting Techniques Large 112 70 Retailers Small 135 65 Retailers (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? 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: # That Used Adv. Statistical Sample Size Forecasting Techniques Large 112 70 Retailers Small 135 65 Retailers (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?

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