Crusty’s has collected data for the last ten days for the time from when an order...

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Crusty’s has collected data for the last ten days for the timefrom when an order is taken until the pizza is finished (see followdata) (five samples are taken each day).

Day

sample 1

sample 2

sample 3

sample 4

sample 5

1

21.24

30.4

26.05

20.61

20.38

2

25.95

40.12

29.68

39.36

19.14

3

30.62

20.78

16.42

22.4

44.71

4

25.45

33.22

21.99

29.08

24.59

5

35.27

33.02

29.42

29.36

31.37

6

21.87

30.12

41.74

38.46

42.62

7

30.37

15.27

33.86

35.84

42.88

8

30.85

35.75

35.5

36.68

18.88

9

42.56

34.25

46.96

39.05

37.47

10

31.01

27.25

37.6

27.32

36.96

  1. Which of the following is true regarding the range?
    1. The upper control limit is 35.02
    2. The lower control limit is 21.47
    3. The lower control limit is 5.64
    4. The upper control limit is 16.56

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