Vehicles heading west on Front Street may turn right, turn left, or go straight ahead at Elm Street. The city traffic engineer believes that half of the vehicles will continue straight through the intersection of the remaining half, equal proportions will turn right and left Two hundred vehicles were observed, with the following results. Can we conclude that the traffic engineer is correct? Use the 0.10 significance level.
Vehicles heading west on Front Street may turn right, turn left, or go straight ahead at Elm Street. The city traffic engineer believes that half of the vehicles will continue straight through the intersection of the remaining half, equal proportions will turn right and left Two hundred vehicles were observed, with the following results. Can we conclude that the traffic engineer is correct? Use the 0.10 significance level.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter86: Bcd (binary Coded Decimal) Numeration Systems
Section: Chapter Questions
Problem 15A
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Question
Vehicles heading west on Front Street may turn right, turn left, or go straight ahead at Elm Street. The city traffic engineer believes that
half of the vehicles will continue straight through the intersection of the remaining half, equal proportions will turn right and left Two
hundred vehicles were observed, with the following results. Can we conclude that the traffic engineer is correct? Use the 0.10
significance level.
Transcribed Image Text:a. Make the decision rule. (Round your answer to 3 decimal places.)
Ho is rejected if chi-square >
b. Evaluate the test statistic. (Round your answer to 2 decimal places.)
Test statistic
c. What is the decision regarding the null hypothesis?
This data
contradict the traffic engineer.
Ho is
Transcribed Image Text:Straight
Right Turn
Left Turn
Frequency
112
48
40
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