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| Teaching Since: | May 2017 |
| Last Sign in: | 407 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
4. The article “Analysis of Time Headways on Urban Roads: Case Study from Riyadh” (A. Al-Ghamdi, Journal of Transportation Engineering, 2001: 289–294) presents a model for the time elapsed be- tween the arrival of consecutive vehicles on urban roads. Following are 137 arrival times (in seconds) along with the values expected from a theoretical model.
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Can you conclude that the quality varies among shifts?
a. State the appropriate null hypothesis.
b. Compute the expected values under the null hypothesis.
c. Compute the value of the chi-square statistic.
d. Find the P-value. What do you conclude?
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