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(Solved): The accompanying data fle shows matched-pairs observations for a before-and-after experiment. Assum ...




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The accompanying data fle shows matched-pairs observations for a before-and-after experiment. Assume that the sampie differences are normally distributed. (You may find it useful to reference the appropriate table: ztable or table) Bpicture Click here for the Excel Data Flle Hint The differences are calculated as Xbefore - Xafter. a. Construct the competing hypotheses to determine if the experiment increases the value of the observations. b. Calculate the value of the test statistic. (Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.) c. Find the p-value? -value d. What is the conclusion to the hypothesis test? \begin{tabular}{|l} \hline We \\ the experiment increases the value of the observations. \end{tabular}


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Here we have, N = 8



  
  
  

Standard deviation   

  

  

(a) Hypothesis

  
  

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