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| Teaching Since: | May 2017 |
| Last Sign in: | 398 Weeks Ago, 6 Days Ago |
| Questions Answered: | 66690 |
| Tutorials Posted: | 66688 |
MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
Computer Science: Data Processing Anela is a computer scientist who is formulating a large and complicated program for a type of data processing. She has three ways of storing and retrieving data: CD, tape, and disk. As an experiment, she sets up her program in three different ways: one using CDs, one using tapes, and the other using disks. Then she makes four test runs of this type of data processing on each program. The time required to execute each program is shown in the following table (in minutes). Use a 0.01 level of significance to test the hypothesis that the mean processing time is the same for each method.
Â
|
CD |
Tape |
Disks |
|
8.7 |
7.2 |
7.0 |
|
9.3 |
9.1 |
6.4 |
|
7.9 |
7.5 |
9.8 |
|
8.0 |
7.7 |
8.2 |
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