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(b) A research has been conducted to study the amount of tar in filtered cigarrate and nonfiltered cigarated. The researcher claimed that the mean of tar in filtered cigarattes is less than the mean amount in nonfiltered cigarattes. By refer to the data listed in Table Q5, use a 0.05 level of significance to test the reseachers's claim. Assume o unknown but equal, and the two populations are normally distributed. Table Q5 Tar contents (in mg) of cigarettes Filtered 16 15 16 14 16 1 16 18 10 14 12 11 14 13 13 cigaretted 13 16 16 8 16 11 Nonfiltered 23 23 24 26 25 26 21 24 cigaretted

(b) A research has been conducted to study the amount of tar in filtered cigarrate and nonfiltered cigarated. The researcher claimed that the mean of tar in filtered cigarattes is less than the mean amount in nonfiltered cigarattes. By refer to the data listed in Table Q5, use a 0.05 level of significance to test the reseachers's claim. Assume o unknown but equal, and the two populations are normally distributed. Table Q5 Tar contents (in mg) of cigarettes Filtered 16 15 16 14 16 1 16 18 10 14 12 11 14 13 13 cigaretted 13 16 16 8 16 11 Nonfiltered 23 23 24 26 25 26 21 24 cigaretted

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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(b) A research has been conducted to study the amount of tar in filtered cigarrate and nonfiltered cigarated. The researcher claimed that the mean of tar in filtered cigarattes is less than the mean amount in nonfiltered cigarattes. By refer to the data listed in Table Q5, use a 0.05 level of significance to test the reseachers's claim. Assume o unknown but equal, and the two populations are normally distributed. Table Q5 Tar contents (in mg) of cigarettes Filtered 16 15 16 14 16 1 16 18 10 14 12 11 14 13 13 cigaretted 13 16 16 8 16 11 Nonfiltered 23 23 24 26 25 26 21 24 cigaretted
Transcribed Image Text:(b) A research has been conducted to study the amount of tar in filtered cigarrate and nonfiltered cigarated. The researcher claimed that the mean of tar in filtered cigarattes is less than the mean amount in nonfiltered cigarattes. By refer to the data listed in Table Q5, use a 0.05 level of significance to test the reseachers's claim. Assume o unknown but equal, and the two populations are normally distributed. Table Q5 Tar contents (in mg) of cigarettes Filtered 16 15 16 14 16 1 16 18 10 14 12 11 14 13 13 cigaretted 13 16 16 8 16 11 Nonfiltered 23 23 24 26 25 26 21 24 cigaretted
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