Q1) Football coach randomly chosen ten players and timed how long each player took to do a certain drill. Times (in minutes) were:
|
players
|
minutes
|
|
1
|
6
|
|
2
|
15
|
|
3
|
5
|
|
4
|
11
|
|
5
|
11
|
|
6
|
5
|
|
7
|
7
|
|
8
|
9
|
|
9
|
15
|
|
10
|
11
|
Suppose that population has normal distribution. Determine a 95 percent confidence interval for population standard deviation sigma.
i) (2.700, 19.023)
ii) (2.579,6.845)
iii) 3.749
iv) (2.064, 7.213)
v) None of above (do allow for slight rounding errors/table differences in selecting your solution)