the following data represent a sample of the assets (in millions of dollars) of 28 credit unions in a state. Assume that the population in this state is normally distributed with sigma = 3.5 million dollars.Use excel to find the 99% confidence interval of the mean assets in millions of dollars. Round your decimal to three places and use ascending order. 12.23

2.89

13.19

73.25

11.59

8.74

7.92

40.22

5.01

2.27

16.56

1.24

9.16

1.91

6.69

3.17

4.78

2.42

1.47

12.77

4.39

2.17

1.42

14.64

1.06

18.13

16.85

21.58