Solved: Travel Time The following data represent the
Chapter 3, Problem 20E(choose chapter or problem)
Problem 20E
Travel Time The following data represent the travel time (in minutes) to school for nine students enrolled in Sullivan’s College Algebra course. Treat the nine students as a population.
Student |
Travel Time |
Student |
Travel Time |
Amanda |
39 |
Scot |
45 |
Amber |
21 |
Erica |
11 |
Tim |
9 |
Tiffany |
12 |
Mike |
32 |
Glenn |
39 |
Nicole |
30 |
|
(a) Determine the population standard deviation.
(b) Find three simple random samples of size 4, and determine the sample standard deviation of each sample.
(c) Which samples underestimate the population standard deviation? Which overestimate the population standard deviation?
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