The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. Assume that a sample of 420 accidents provided the following data. Sunday Monday Tuesday Wednesday Thursday Friday Saturday 66 51 53 47 54 69 80 (a) Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. Use a 0.05 level of significance. State the null and alternative hypotheses. O Ho: Not all proportions are equal. Hạ: PSun = PMon = PTue = Pwed = PThu = PFri = Psat == O Ho: Psun * PMon + PTue + Pwed * PThu * PFri * PSat * G H: All proportions are equal. O Ho: Not all proportions are equal. 1 Ha: PSun * PMon * PTue * Pwed * PThu * PFri * Psat * 1 O Ho: Psun = PMon = PTue = Pwed = PThu = PFri = PSat = H: Not all proportions are equal. Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Reject Ho. We conclude that the proportion of traffic accidents is the same for each day of the week. O Do not reject Hn. We conclude that the proportion of traffic accidents is not the same for each day of the week. O Do not reject Hn. We conclude that the proportion of traffic accidents is the same for each day of the week. O Reject Ho. We conclude that the proportion of traffic accidents is not the same for each day of the week. (b) Compute the percentage of traffic accidents occurring on each day of the week. (Round your answers to two decimal places.) Sunday Monday Tuesday Wednerdar
The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. Assume that a sample of 420 accidents provided the following data. Sunday Monday Tuesday Wednesday Thursday Friday Saturday 66 51 53 47 54 69 80 (a) Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. Use a 0.05 level of significance. State the null and alternative hypotheses. O Ho: Not all proportions are equal. Hạ: PSun = PMon = PTue = Pwed = PThu = PFri = Psat == O Ho: Psun * PMon + PTue + Pwed * PThu * PFri * PSat * G H: All proportions are equal. O Ho: Not all proportions are equal. 1 Ha: PSun * PMon * PTue * Pwed * PThu * PFri * Psat * 1 O Ho: Psun = PMon = PTue = Pwed = PThu = PFri = PSat = H: Not all proportions are equal. Find the value of the test statistic. (Round your answer to three decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Reject Ho. We conclude that the proportion of traffic accidents is the same for each day of the week. O Do not reject Hn. We conclude that the proportion of traffic accidents is not the same for each day of the week. O Do not reject Hn. We conclude that the proportion of traffic accidents is the same for each day of the week. O Reject Ho. We conclude that the proportion of traffic accidents is not the same for each day of the week. (b) Compute the percentage of traffic accidents occurring on each day of the week. (Round your answers to two decimal places.) Sunday Monday Tuesday Wednerdar
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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Transcribed Image Text:(b) Compute the percentage of traffic accidents occurring on each day of the week. (Round your answers to two decimal places.)
Sunday
%
Monday
%
Tuesday
%
Wednesday
%
Thursday
%
Friday
%
Saturday
What day has the highest percentage of traffic accidents?
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Transcribed Image Text:The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. Assume that a sample of 420 accidents provided the following data.
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
66
51
53
47
54
69
80
(a) Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. Use a 0.05 level of significance.
State the null and alternative hypotheses.
O Ho: Not all proportions are equal.
1
Ha: Psun = PMon = PTue
Pwed
PThu = PFri = PSat
Ho: Psun
+ Pwed + PThu + PFri
キ
PMon + PTue
キ
PSat
: All proportions are equal.
Hai
O Ho: Not all proportions are equal.
Ha: Psun * PMon
PTue
Pwed + PThu + PFri
+ PSat
7
1
Ho: Psun = PMon = PTue = Pwed = PThu = PFri = Psat
H: Not all proportions are equal.
Find the value of the test statistic. (Round your answer to three decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value =
State your conclusion.
Reject Ho. We conclude that the proportion of traffic accidents is the same for each day of the week.
Do not reject Ho. We conclude that the proportion of traffic accidents is not the same for each day of the week.
Do not reject Ho. We conclude that the proportion of traffic accidents is the same for each day of the week.
Reject Ho. We conclude that the proportion of traffic accidents is not the same for each day of the week.
(b) Compute the percentage of traffic accidents occurring on each day of the week. (Round your answers to two decimal places.)
Sunday
Monday
%
Tuesday
%
Wednesday
%
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