Yosemite Park Medical Services (YPMS) provides emergency health care for park visitors. Such health care includes treatment for everything from indigestion and sunburn to more serious injuries. A recent issue of Yosemite Monthly indicated that the average number of visitors treated each day was 23.8. For a 10-day period, the following data show the number of visitors treated each day by YPMS: Day 1 2 3 4 5 6 7 8 9 10 Number treated 22 27 16 19 28 23 14 29 38 13 Make a control chart and determine if the data in the table is "in control"? Explain your conclusion.

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Yosemite Park Medical Services (YPMS) provides emergency health care for park visitors. Such health care includes treatment for everything from indigestion and sunburn to more serious injuries. A recent issue of Yosemite Monthly indicated that the average number of visitors treated each day was 23.8. For a

10-day period, the following data show the number of visitors treated each day by YPMS:

Day

         1

       2

     3

      4

      5

     6

     7

     8

       9

      10

Number treated

       22

      27

    16

    19

    28

    23

     14

     29

      38

       13

Make a control chart and determine if the data in the table is "in control"? Explain your conclusion.

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