Construct one table that includes relative frequencies based on the frequency distributions shown below, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective? (Hint: The filters reduce the amount of tar ingested by the smoker.) Tar (mg) in Nonfiltered Cigarettes Frequency Tar (mg) in Filtered Cigarettes Frequency 19−24 1 7−12 3 25−30 0 13−18 3 31−36 15 19−24 6 37−42 7 25−30 13 43−48 2 Click the icon to view the frequency distributions. Complete the relative frequency table below. Tar (mg) Relative Frequency (Nonfiltered) Relative Frequency (Filtered) 7−12 nothing% nothing% 13−18 nothing% nothing% 19−24 nothing% nothing% 25−30 nothing% nothing% 31−36 nothing% nothing% 37−42 nothing% nothing% 43−48 nothing% nothing% (Simplify your answers.) Do cigarette filters appear to be effective? A. No, because the relative frequencies for each are not substantially different. B. No, because the relative frequency of the higher tar classes is greater for filtered cigarettes. C. Yes, because the relative frequency of the higher tar classes is greater for nonfiltered cigarettes. D. This cannot be determined.

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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Construct one table that includes relative frequencies based on the frequency distributions shown below, then compare the amounts of tar in nonfiltered and filtered cigarettes. Do the cigarette filters appear to be effective? (Hint: The filters reduce the amount of tar ingested by the smoker.)

Tar (mg) in Nonfiltered Cigarettes	Frequency		Tar (mg) in Filtered Cigarettes	Frequency
19−24	1	7−12	3
25−30	0	13−18	3
31−36	15	19−24	6
37−42	7	25−30	13
43−48	2

Click the icon to view the frequency distributions.

Complete the relative frequency table below.

Tar (mg)	Relative Frequency (Nonfiltered)	Relative Frequency (Filtered)
7−12	nothing%	nothing%
13−18	nothing%	nothing%
19−24	nothing%	nothing%
25−30	nothing%	nothing%
31−36	nothing%	nothing%
37−42	nothing%	nothing%
43−48	nothing%	nothing%

(Simplify your answers.)

Do cigarette filters appear to be effective?

No, because the relative frequencies for each are not substantially different.

No, because the relative frequency of the higher tar classes is greater for filtered cigarettes.

Yes, because the relative frequency of the higher tar classes is greater for nonfiltered cigarettes.

This cannot be determined.

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