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1. A report in LTO stated that the average age of taxis in the Philippines is 9 years. An operation manager of a large taxi company selects a sample of 40 taxis and finds the average age of the taxis is 8.2 years. The o of the population is 2.3 years. At a = 0.05, can it be concluded that the average age of the taxis in his company is less than the national average? Solution: Step 1: State the hypotheses. Ho: H::

1. A report in LTO stated that the average age of taxis in the Philippines is 9 years. An operation manager of a large taxi company selects a sample of 40 taxis and finds the average age of the taxis is 8.2 years. The o of the population is 2.3 years. At a = 0.05, can it be concluded that the average age of the taxis in his company is less than the national average? Solution: Step 1: State the hypotheses. Ho: H::

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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1. A report in LTO stated that the average age of taxis in the Philippines is 9 years. An operation manager of a large taxi company selects a sample of 40 taxis and finds the average age of the taxis is 8.2 years. The o of the population is 2.3 years. At a = 0.05, can it be concluded that the average age of the taxis in his company is less than the national average? Solution: Step 1: State the hypotheses. Ho: H:: Step 2: The level of significance and critical region. a = and zcritical = Step 3: Compute for the value of one sample z test. Zcomputed Step 4: Decision rule. Step 5: Conclusion.
Transcribed Image Text:1. A report in LTO stated that the average age of taxis in the Philippines is 9 years. An operation manager of a large taxi company selects a sample of 40 taxis and finds the average age of the taxis is 8.2 years. The o of the population is 2.3 years. At a = 0.05, can it be concluded that the average age of the taxis in his company is less than the national average? Solution: Step 1: State the hypotheses. Ho: H:: Step 2: The level of significance and critical region. a = and zcritical = Step 3: Compute for the value of one sample z test. Zcomputed Step 4: Decision rule. Step 5: Conclusion.
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