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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
45. Â
|
Exercise 33 in Section 1.3 presented a sample of 26 escape times for oil workers in a simulated escape exercise. Calculate and interpret the sample standard deviation. (Hint: "2xi = 9638 and "2x 2= 3,587,566).
46.  A study of the relationship between age and various visual functions (such as acuity and depth percep- tion) reported the following observations on area of scleral lamina (mm2) from human optic nerve heads ( Morphometry of Nerve Fiber Bundle Pores in the Optic Nerve Head of the Human, Experiment. Eye Res., 1988: 559—568):
Â
|
2.75Â Â 2.62Â Â 2.74Â Â 3.85Â Â 2.34 |
2.74 |
3.93 |
4.21 |
3.88 |
|
4.33Â Â 3.46Â Â 4.52Â Â 2.43Â Â 3.65 |
2.78 |
3.56 |
3.01 |
 |
a. Â
|
Calculate "2xi and "2x 2.
b.  Use the values calculated in part (a) to compute the sample variance s2 and then the sample stan- dard deviation s.
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