37 a) What proportion of males smoked? 164 18 b) What proportion of females smoked? 282 c) What is the difference in proportions (males minus females)? .0247 x (Round your answer to the nearest thousandth.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
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ISBN:9780547587776
Author:HOLT MCDOUGAL
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Chapter11: Data Analysis And Probability
Section: Chapter Questions
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In a survey conducted in 2003, the counts who smoked were 37 of 164 males and 48 of 282 females.
Males
Females
Total
Smoked
37
48
85
Did not
smoke
127
234
361
Total
164
282
446
37
a) What proportion of males smoked?
164
48
b) What proportion of females smoked?
282
c) What is the difference in proportions (males minus females)? -.0247
x (Round
your answer to the nearest thousandth.)
Run at least 5000 simulations using the Rossman/Chance applet. Estimate the likelihood that random
chance could explain the results.
d) What is the approximate probability that the results from the sample could have come from random
chance?
Transcribed Image Text:In a survey conducted in 2003, the counts who smoked were 37 of 164 males and 48 of 282 females. Males Females Total Smoked 37 48 85 Did not smoke 127 234 361 Total 164 282 446 37 a) What proportion of males smoked? 164 48 b) What proportion of females smoked? 282 c) What is the difference in proportions (males minus females)? -.0247 x (Round your answer to the nearest thousandth.) Run at least 5000 simulations using the Rossman/Chance applet. Estimate the likelihood that random chance could explain the results. d) What is the approximate probability that the results from the sample could have come from random chance?
A survey of 500 randomly chosen adults found that 60 of the 300 men and 50 of the 200 women had
purchased books online.
Men
Women
Total
Had
purchased
Had not
purchased
60
50
110
240
150
390
Total
300
200
500
a) What proportion of men had purchased online?
60
300
50
b) What proportion of women had purchased online?
200
c) What is the difference in proportions (men minus women)?
10
100
Run at least 5000 simulations using the Rossman/Chance applet. Estimate the likelihood that random
chance could explain the results.
d) What is the approximate probability that the results from the sample could have come from random
chance?
Transcribed Image Text:A survey of 500 randomly chosen adults found that 60 of the 300 men and 50 of the 200 women had purchased books online. Men Women Total Had purchased Had not purchased 60 50 110 240 150 390 Total 300 200 500 a) What proportion of men had purchased online? 60 300 50 b) What proportion of women had purchased online? 200 c) What is the difference in proportions (men minus women)? 10 100 Run at least 5000 simulations using the Rossman/Chance applet. Estimate the likelihood that random chance could explain the results. d) What is the approximate probability that the results from the sample could have come from random chance?
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