Name Duration/minutes
Daniel S. 43
Elvis 57
Lee Ling 73
Israel 79
Aloka 79
Paul 86
Joshua 94
Branson 98
Tosiwo 98
LJ 101
Jake 105
Penina 105
Charles 111
Emmanuel 111
Edwin 113
Ermine 115
Dalina 117
Daniel M. 118


94.61 1. Sample mean
21.32 2. Standard deviation
0.5000 3. What % by 94.61 minutes or less?
0.1587 4. What % after 115.93 minutes or later?
0.9515 5. Percent in by 130 minutes.
67.29 6. When had 10% arrived?
18 7. Sample size n
0.95 8. Confidence level c
17 9. Degrees of freedom
2.1098 10. t-critical tc
10.6 11. Error tolerance E

12. P(84.01 ≤ µ ≤ 105.21) = 0.95
84 105

13. Yes, confidence interval includes 103 minutes.
5575.27 Optional: number of tosses per hand