The report in LTO stated that the averageage of taxis in the Philippines is 12 years.An operations manager of a large taxicompany selects a sample of 40 taxis andfinds the average age of the taxis is 11.2years. The standard deviation of thepopulation is 2.3 years.Is the report in LTO correct at 0.05 level ofsignificance?STEP 1:Claim: The average age of taxis in thePhilippines is [a] 12 years.Ho: The average age of taxis in thePhilippines is [b] to 12 years.Ha: The average age of taxis in thePhilippines [c] to 12 years.STEP 2:Test statistic: [d]Type of test: [e]Critical value/s: [e]α= = 0.05 STEP 3:What is the computed test value? [f]STEP 4:Decision: [g]STEP 5:Conclusion: [h] (Choose the letter of youranswer.)A. There is no significant differencebetween the sample mean andpopulation mean. Thus, it can beconcluded that the report of LTO iscorrect.B. There is a significant differencebetween the sample mean andpopulation mean. Thus, it can beconcluded that the report of LTO isincorrect.C. There is a significant differencebetween the sample mean andpopulation mean. Thus, it can be

Given that: Sample size, n = 40 Sample mean, x¯=11.2 Population mean, μ=12 Population standard…

Answered: The report in LTO stated that the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The National Center for Health Statistics reports that the systolic blood pressure for males 35 to 44 years of age has mean 28mm Hg and standard deviation 15 mm Hg. The medical director of a large company looks at the medical records of 72 executives in this age group and finds that the mean systolic blood pressure in this sample is x = 126.07 mm Hg. At a 5% significance level, the data fail to show significant evidence that the mean blood pressure of a population of executives differs from the national mean = 128 mm Hg. The medical director now wonders if the test used would detect an important difference if one were present. Use the applet to calculate the power of the test against the alternative μ = 122 mm Hg. Provide your answer to three decimal places. Power =
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