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A tobacco company advertises that the average nicotine content of its cigarettes is at most 14 milligrams. A consumer protection agency wants to determine whether the average nicotine content is in fact greater than 14. Á random sample of 300 cigarettes of the company's brand yields an average nicotine content of 14.6 milligrams and a standard deviation of 3.8 milligrams. (a) Determine if the data support the agency's claim that the u is greater than 14. Use a = 0.01. (b) Determine the level of significance (p-value) of your test results.

A tobacco company advertises that the average nicotine content of its cigarettes is at most 14 milligrams. A consumer protection agency wants to determine whether the average nicotine content is in fact greater than 14. Á random sample of 300 cigarettes of the company's brand yields an average nicotine content of 14.6 milligrams and a standard deviation of 3.8 milligrams. (a) Determine if the data support the agency's claim that the u is greater than 14. Use a = 0.01. (b) Determine the level of significance (p-value) of your test results.

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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A tobacco company advertises that the average nicotine content of its cigarettes is at most 14 milligrams. A consumer protection agency wants to determine whether the average nicotine content is in fact greater than 14. Á random sample of 300 cigarettes of the company's brand yields an average nicotine content of 14.6 milligrams and a standard deviation of 3.8 milligrams. (a) Determine if the data support the agency's claim that the u is greater than 14. Use a = 0.01. (b) Determine the level of significance (p-value) of your test results.
Transcribed Image Text:A tobacco company advertises that the average nicotine content of its cigarettes is at most 14 milligrams. A consumer protection agency wants to determine whether the average nicotine content is in fact greater than 14. Á random sample of 300 cigarettes of the company's brand yields an average nicotine content of 14.6 milligrams and a standard deviation of 3.8 milligrams. (a) Determine if the data support the agency's claim that the u is greater than 14. Use a = 0.01. (b) Determine the level of significance (p-value) of your test results.
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A tobacco company advertises that the average nicotine content of its cigarettes is at most 14 milligrams. A consumer protection agency wants to determine whether the average nicotine content is in fact greater than 14. A random sample of 300 cigarettes of the company's brand yields an average nicotine content of 14.6 milligrams and a standard deviation of 3.8 milligrams. (a) Determine if the data support the agency's claim that the u is greater than 14. Use a = 0.01. (b) Determine the level of significance (p-value) of your test results.
Transcribed Image Text:A tobacco company advertises that the average nicotine content of its cigarettes is at most 14 milligrams. A consumer protection agency wants to determine whether the average nicotine content is in fact greater than 14. A random sample of 300 cigarettes of the company's brand yields an average nicotine content of 14.6 milligrams and a standard deviation of 3.8 milligrams. (a) Determine if the data support the agency's claim that the u is greater than 14. Use a = 0.01. (b) Determine the level of significance (p-value) of your test results.
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