A city expressway with four lanes in each direction was studied to see whether drivers preferred to drive on the inside lanes. A total of 1000 automobiles were observed during the heavy early-morning traffic, and their respective lanes were recorded. The results are shown in the following table. Lane Count 1 294 2 276 O Standard Normal distribution O Chi-squared distribution with 3 degrees of freedom Ot distribution with 3 degrees of freedom. 3 238 To test whether there is sufficient evidence to indicate that some lanes are preferred over others, they test Ho P1 P2 P3 P4 vs. Ha Pi Pj, for some i ‡j, i, j = 1, 2, 3, 4. What is the distribution of the test statistic? O Chi-squared distribution with 4 degrees of freedom 4 192 Total 1000
A city expressway with four lanes in each direction was studied to see whether drivers preferred to drive on the inside lanes. A total of 1000 automobiles were observed during the heavy early-morning traffic, and their respective lanes were recorded. The results are shown in the following table. Lane Count 1 294 2 276 O Standard Normal distribution O Chi-squared distribution with 3 degrees of freedom Ot distribution with 3 degrees of freedom. 3 238 To test whether there is sufficient evidence to indicate that some lanes are preferred over others, they test Ho P1 P2 P3 P4 vs. Ha Pi Pj, for some i ‡j, i, j = 1, 2, 3, 4. What is the distribution of the test statistic? O Chi-squared distribution with 4 degrees of freedom 4 192 Total 1000
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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Transcribed Image Text:A city expressway with four lanes in each direction was studied to see whether drivers preferred to drive on
the inside lanes. A total of 1000 automobiles were observed during the heavy early-morning traffic, and their
respective lanes were recorded. The results are shown in the following table.
Lane
Count
1
294
2
276
O Standard Normal distribution
3
238
O Chi-squared distribution with 3 degrees of freedom
O t distribution with 3 degrees of freedom.
O Chi-squared distribution with 4 degrees of freedom
4
192
To test whether there is sufficient evidence to indicate that some lanes are preferred over others, they test
Ho P₁ P2 P3 = P4 vs. Ha : Pi Pj, for some i ‡j, i, j = 1, 2, 3, 4.
What is the distribution of the test statistic?
Total
1000
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