mong the literature on quitting smoking are data detailing the relative successfulness of people of different ages in quitting smoking. A study of 400 dults who began various smoking-cessation programs produced the data in the table below. In the table, each participant is classified according to t ariables: length of their smoking cessation period ("Less than two weeks", "Between two weeks and one year", or "At least one year") and age ("21- r "35 and over"). In the table, "less than two weeks" means that the individual returned to smoking within two weeks of beginning the program; between two weeks and one year" means that the individual lasted the first two weeks without smoking but retuned to smoking within a year; and " east one year" means that the individual has not smoked for at least a year since beginning the program. The table is a contingency table whose cells contain the respective observed frequencies of classifications of the 400 smokers. In addition, three of th cells have blanks beneath the observed frequencies. Fill in these blanks with the frequencies expected if the two variables, age and length of the sma cessation period, are independent. Round your answers to two or more decimal places. Send data to Excel Age 21-34 35 and over Total Less than two weeks 63 0 41 Length of smoking cessation period 104 Between two weeks and one At least one year year 121 0 73 194 78 24 102 Total 262 138 400 X S
mong the literature on quitting smoking are data detailing the relative successfulness of people of different ages in quitting smoking. A study of 400 dults who began various smoking-cessation programs produced the data in the table below. In the table, each participant is classified according to t ariables: length of their smoking cessation period ("Less than two weeks", "Between two weeks and one year", or "At least one year") and age ("21- r "35 and over"). In the table, "less than two weeks" means that the individual returned to smoking within two weeks of beginning the program; between two weeks and one year" means that the individual lasted the first two weeks without smoking but retuned to smoking within a year; and " east one year" means that the individual has not smoked for at least a year since beginning the program. The table is a contingency table whose cells contain the respective observed frequencies of classifications of the 400 smokers. In addition, three of th cells have blanks beneath the observed frequencies. Fill in these blanks with the frequencies expected if the two variables, age and length of the sma cessation period, are independent. Round your answers to two or more decimal places. Send data to Excel Age 21-34 35 and over Total Less than two weeks 63 0 41 Length of smoking cessation period 104 Between two weeks and one At least one year year 121 0 73 194 78 24 102 Total 262 138 400 X S
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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Transcribed Image Text:Among the literature on quitting smoking are data detailing the relative successfulness of people of different ages in quitting smoking. A study of 400
adults who began various smoking-cessation programs produced the data in the table below. In the table, each participant is classified according to two
variables: length of their smoking cessation period ("Less than two weeks", "Between two weeks and one year", or "At least one year") and age ("21-34",
or "35 and over"). In the table, "less than two weeks" means that the individual returned to smoking within two weeks of beginning the program;
"between two weeks and one year" means that the individual lasted the first two weeks without smoking but retuned to smoking within a year; and "at
least one year" means that the individual has not smoked for at least a year since beginning the program.
The table is a contingency table whose cells contain the respective observed frequencies of classifications of the 400 smokers. In addition, three of the
cells have blanks beneath the observed frequencies. Fill in these blanks with the frequencies expected if the two variables, age and length of the smoking
cessation period, are independent.
Round your answers to two or more decimal places.
Send data to Excel
Age
21-34
35 and over
Total
Less than two
weeks
63
0
41
Length of smoking cessation period
Between two
weeks and one
year
121
104
0
73
194
At least one year
78
24
102
Total
262
138
400
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