Assuming alpha value = .05, how do I find the mean, standard deviation and confidence interval. Gas prices are as listed:

Assuming alpha value = .05, how do I find the mean, standard deviation and confidence interval.

Gas prices are as listed:

1.$3.76

2. $3.50

3. $3.74

4. $3.46

5. $3.70

6. $3.86

7. $3.58

8. $3.70

9. $3.64

10. $3.76

11. $3.46

12. $3.35

13. $3.90

14. $3.36

15. $3.80

16. $3.35

17. $3.52

18. $3.46

19. $3.60

20. $3.70

21.$3.86

22. $3.52

23. $3.44

24. $3.76

25. $3.90

26. $3.50

27. $3.76

28. $3.68

29.$3.66

30. $3.38

31. $4.70

32. $4.50

33.$3.86

34. $3.66

35. $4.30

36. $3.56

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