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In: Statistics and Probability

A new system has been implemented with the purpose of reducing transaction time historically at 10...

A new system has been implemented with the purpose of reducing transaction time historically at 10 minutes. A random sample of 80 transactions obtained after the implementation of the new system showed an average time of 9.5 minutes with a standard deviation of 1.5 minutes. Would you say that there has been a reduction of processing time occurred after the implementation of the new system? Formulate the hypothesis:

A. Ho: µ≥9.5 . Ha: µ<9.5

B. Ho: µ>10 . Ha: µ≤10

C. Ho: µ>9.5 . Ha: µ≤9.5

D. Ho: µ≥10 . Ha: µ<10

Solutions

Expert Solution

Option - D)

                

                                

                                                  

                                         

                                                 

                                         

                                         

orchestra answered 2 years ago
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