The time it takes (in minutes) to treat randomly selected patients in an emergency room at hospital X for four shifts is recorded below. Perform an analysis of variance, at the 0.05 level of significance. Shifts Morning (6 – 12) Noon (12 – 6 ) Evening (6 – 12 ) Midnight (12 – 6 ) 20 16 12 19 12 18 6 16 15 17 8 19 16 10 10 10 15 12 8 12

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The time it takes (in minutes) to treat randomly selected patients in an emergency room at hospital X for four shifts is recorded below. Perform an analysis of variance, at the 0.05 level of significance.

Shifts

Morning (6 – 12)

Noon (12 – 6 )

Evening (6 – 12 )

Midnight (12 – 6 )

20

16

12

19

12

18

6

16

15

17

8

19

16

10

10

10

15

12

8

12

 

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