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The accompanying data file contains information on matched sample observations whose differences are normally distributed. (You may find it useful to reference the appropriate table:

The accompanying data file contains information on matched sample observations whose differences are normally distributed.(You may find it useful to reference the appropriate table:ztableorttable)

Click here for the Excel Data File Let the difference be defined as Sample 1 - Sample 2. a.Construct the 99% confidence interval for the mean differenceD.(Negative value should be indicated by a minus sign. Round final answers to 2 decimal places.)

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