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Make a Mann-Whitney Test for following data regarding customer satisfaction for two Dry Cleaners stores.  Process at the 1% level of risk.

Lee's Dry Cleaning Grant's Dry Cleaning
s1=220.5 s2=198.5
n1=24 n2=24
R1=18.725 R215.125



CVs: z =

TS: z =

Decision and Conclusion:  Is there the difference in customer satisfaction between these two stores? Describe.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M922370

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