Question: set 1: A random sample was selected to determine whether the gas fuel cost different between east side (consider as 1) and west side (consider

set 1: A random sample was selected to determine whether the gas fuel cost different between east side (consider as 1) and west side (consider as 2). Given =0.01. The data are summarized below: East Side West Side Difference Average 2.90/gal 2.99/gal -0.09/gal Sample Size 12 12 12 Standard Deviation 0.81 0.95 0.38 (a) Set up the hypothesis: Group of answer choices Ho: p1- p2=0 Ha: p1- p2 0 Ho: 1- 2=0 Ha: 1- 2

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