he times (in minutes) to assemble a component for 3 different cell phones are listed below. Workers are randomly selected. Test the hypothesis that there is no difference in the mean time for each cell phone. Use a= 0.01. Verify all conditions. Show all steps of inferencial method used. Show formula used and values found.

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The times (in minutes) to assemble a component for 3 different cell phones are listed below. Workers are randomly selected. Test the hypothesis that there is no difference in the mean time for each cell phone. Use a= 0.01. Verify all conditions. Show all steps of inferencial method used. Show formula used and values found. 

Phone 1 Phone 2 Phone 3
32 40 25
30 29 31
32 38 29
31 33 28
33 32  
31 35  
  36  
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