MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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a. For each​ gender, find a​ 95% confidence interval for mean weekly alcohol consumption.
 
Psychologists at an university compared the levels of alcohol consumption of male and female freshman students. Each student was asked to estimate the amount of alcohol (beer, wine, or liquor) they consume in a typical week. Summary statistics for 127 males and 185 females
are provided in the accompanying table.
Data table
Sample size, n
Mean (ounces), x
Standard deviation,
S
Print
Males
127
16.77
13.54
Done
Females
185
10.73
11.57
X
←
expand button
Transcribed Image Text:Psychologists at an university compared the levels of alcohol consumption of male and female freshman students. Each student was asked to estimate the amount of alcohol (beer, wine, or liquor) they consume in a typical week. Summary statistics for 127 males and 185 females are provided in the accompanying table. Data table Sample size, n Mean (ounces), x Standard deviation, S Print Males 127 16.77 13.54 Done Females 185 10.73 11.57 X ←
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