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The average age of commercial jets in the U.S. is 15.6 years. An executive at a large airline company claims that the average age of her planes is less than this., She randomly selects 32 of her company's planes, and finds the sample's average age is 15.2 years. The population standard deviation is 1.4 years, With a = 0.01., can the executive's claim be supported? a) State the appropriate null and alternative hypotheses. Ho: a I Select) [Select] H: u (Select) [ Select] b) Compute the value of the test statistic. Round the answer to two decimal places. z Select) O Find the P-Value. Round the answer to four decimal places. P-value- ISelect| d State the decision. [Select) Ho eState a conclusion. There 1Select v enough evidence to conclude that the averagk age of planes at the large airline company is less than 15.6 years.

The average age of commercial jets in the U.S. is 15.6 years. An executive at a large airline company claims that the average age of her planes is less than this., She randomly selects 32 of her company's planes, and finds the sample's average age is 15.2 years. The population standard deviation is 1.4 years, With a = 0.01., can the executive's claim be supported? a) State the appropriate null and alternative hypotheses. Ho: a I Select) [Select] H: u (Select) [ Select] b) Compute the value of the test statistic. Round the answer to two decimal places. z Select) O Find the P-Value. Round the answer to four decimal places. P-value- ISelect| d State the decision. [Select) Ho eState a conclusion. There 1Select v enough evidence to conclude that the averagk age of planes at the large airline company is less than 15.6 years.

MATLAB: An Introduction with Applications
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 average age of commercial jets in the U.S. is 15.6 years. An executive at a large airline company claims that the average age of her planes is less than this. She randomly selects 32 of her company's planes, and finds the sample's average age is 15.2 years. The population standard deviation is 1.4 years. With a = 0.01, can the executive's claim be supported? %3D a) State the appropriate null and alternative hypotheses. Ho: H [Select] [ Select] H: H [Select] [ Select] b) Compute the value of the test statistic. Round the answer to two decimal places. [Select] Find the P-Value. Round the answer to four decimal places. P-value | Select ] d) State the decision. (Select] Ho. e) State a conclusion. There ISelect] enough evidence to conclude that the average age of planes at the large airline company is less than 15.6 years. <>
Transcribed Image Text:The average age of commercial jets in the U.S. is 15.6 years. An executive at a large airline company claims that the average age of her planes is less than this. She randomly selects 32 of her company's planes, and finds the sample's average age is 15.2 years. The population standard deviation is 1.4 years. With a = 0.01, can the executive's claim be supported? %3D a) State the appropriate null and alternative hypotheses. Ho: H [Select] [ Select] H: H [Select] [ Select] b) Compute the value of the test statistic. Round the answer to two decimal places. [Select] Find the P-Value. Round the answer to four decimal places. P-value | Select ] d) State the decision. (Select] Ho. e) State a conclusion. There ISelect] enough evidence to conclude that the average age of planes at the large airline company is less than 15.6 years. <>
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