You want to see if it makes a difference which lane to be in when there is traffic. You randomly observe 240 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 Lane 1 Lane 2 Lane 3 56 39 77 Lane 4 68 b. What is the correct statistical test to use? Select an answer ✓ c. What are the null and alternative hypotheses? Ho: The traffic and lanes are dependent. The traffic and lanes are independent. O The distribution of traffic is uniform. The distribution of traffic is not uniform.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 26PFA
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Question
H₁:
The distribution of traffic is not uniform.
The traffic and lanes are dependent.
The traffic and lanes are independent.
The distribution of traffic is uniform.
d. The degrees of freedom =
e. The test-statistic for this data =
f. The p-value for this sample
(Please show your answer to four decimal places.)
g. The p-value is Select an answer
h. Based on this, we should Select an answer
i. Thus, the final conclusion is...
(Please show your answer to three decimal places.)
α
There is insufficient evidence to conclude that traffic and lanes are dependent.
There is insufficient evidence to conclude that the distribution of traffic is not uniform.
There is sufficient evidence to conclude that traffic and lanes are dependent.
There is sufficient evidence to conclude that the distribution of traffic is not uniform.
There is sufficient evidence to conclude that the distribution of traffic is uniform.
Transcribed Image Text:H₁: The distribution of traffic is not uniform. The traffic and lanes are dependent. The traffic and lanes are independent. The distribution of traffic is uniform. d. The degrees of freedom = e. The test-statistic for this data = f. The p-value for this sample (Please show your answer to four decimal places.) g. The p-value is Select an answer h. Based on this, we should Select an answer i. Thus, the final conclusion is... (Please show your answer to three decimal places.) α There is insufficient evidence to conclude that traffic and lanes are dependent. There is insufficient evidence to conclude that the distribution of traffic is not uniform. There is sufficient evidence to conclude that traffic and lanes are dependent. There is sufficient evidence to conclude that the distribution of traffic is not uniform. There is sufficient evidence to conclude that the distribution of traffic is uniform.
You want to see if it makes a difference which lane to be in when there is traffic. You randomly
observe 240 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
Lane 1
Lane 2
Lane 3
Lane 4
56
39
77
68
b. What is the correct statistical test to use?
Select an answer ✓
c. What are the null and alternative hypotheses?
Ho:
The traffic and lanes are dependent.
The traffic and lanes are independent.
The distribution of traffic is uniform.
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 240 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 Lane 1 Lane 2 Lane 3 Lane 4 56 39 77 68 b. What is the correct statistical test to use? Select an answer ✓ c. What are the null and alternative hypotheses? Ho: The traffic and lanes are dependent. The traffic and lanes are independent. The distribution of traffic is uniform. The distribution of traffic is not uniform.
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