You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 3 cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a = 0.01. a. Complete the rest of the table by filling in the expected frequencies: Frequency of Cars in Each Lane Outcome Frequency Expected Frequency

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Question

Please solve for D, E, and F

You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 372
cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of
significance of a = 0.01.
a. Complete the rest of the table by filling in the expected frequencies:
of Cars in Each Lane
Frequency
Outcome Frequency Expected Frequency
Lane 1
89
Lane 2
98
Lane 3
92
Lane 4
93
b. What is the correct statistical test to use?
Select an answer Y
C. What are the null and alternative hypotheses?
Ho:
OThe distribution of traffic is not uniform.
O The traffic and lanes are independent.
O The distribution of traffic is uniform.
KO The traffic and lanes are dependent.
Hi :
OThe distribution of traffic is uniform.
OThe traffic and lanes are independent.
O The traffic and lanes are dependent.
O The distribution of traffic is not uniform.
Transcribed Image Text:You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 372 cars as they pass by on the four lane freeway. The results are displayed in the table below. Use a level of significance of a = 0.01. a. Complete the rest of the table by filling in the expected frequencies: of Cars in Each Lane Frequency Outcome Frequency Expected Frequency Lane 1 89 Lane 2 98 Lane 3 92 Lane 4 93 b. What is the correct statistical test to use? Select an answer Y C. What are the null and alternative hypotheses? Ho: OThe distribution of traffic is not uniform. O The traffic and lanes are independent. O The distribution of traffic is uniform. KO The traffic and lanes are dependent. Hi : OThe distribution of traffic is uniform. OThe traffic and lanes are independent. O The traffic and lanes are dependent. O The distribution of traffic is not uniform.
d. The degrees of freedom =
e. The test-statistic for this data =
(Please show your answer to three decimal places.)
f. The p-value for this sample =
(Please show your answer to four decimal places.)
%3D
g. The p-value is Select an answer
h. Based on this, we should Select an answer
i. Thus, the final conclusion is...
OThere is sufficient evidence to conclude that the distribution of traffic is uniform.
O There is insufficient evidence to conclude that traffic and lanes are dependent.
O There is sufficient evidence to conclude that the distribution of traffic is not uniform.
O There is sufficient evidence to conclude that traffic and lanes are dependent.
OThere is insufficient evidence to conclude that the distribution of traffic is not uniform.
Transcribed Image Text:d. The degrees of freedom = e. The test-statistic for this data = (Please show your answer to three decimal places.) f. The p-value for this sample = (Please show your answer to four decimal places.) %3D g. The p-value is Select an answer h. Based on this, we should Select an answer i. Thus, the final conclusion is... OThere is sufficient evidence to conclude that the distribution of traffic is uniform. O There is insufficient evidence to conclude that traffic and lanes are dependent. O There is sufficient evidence to conclude that the distribution of traffic is not uniform. O There is sufficient evidence to conclude that traffic and lanes are dependent. OThere is insufficient evidence to conclude that the distribution of traffic is not uniform.
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