34 35 35 36 36 36 38 38 38 38 38 39 40 40 41 42 43 43 45 45 46 46 47 50 50 51
52 53 55 56 60
We have for given data,
Sample mean =43.42
Sample standard deviation =7.045
Sample size =31
Level of significance=1-0.99=0.01
Degree of freedom =30
t critical value is (by using t table)=
2.75
Confidence interval formula is
=(39.94,46.90)
Get Answers For Free
Most questions answered within 1 hours.