Elwin Osbourne, CIO at GFS, Inc., is studying employee use of GFS e-mail for non-business communications. A random sample of 200 e-mail messages was selected. Thirty of the messages were not business related. The 90% confidence interval for the population proportion is 0.10847 to 0.19153 0.15300 to 0.24700 0.09126 to 0.20874 0.14521 to 0.25514 0.25514 to 0.26521

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Elwin Osbourne, CIO at GFS, Inc., is studying employee use of GFS e-mail for non-business communications. A random sample of 200 e-mail messages was selected. Thirty of the messages
were not business related. The 90% confidence interval for the population proportion is
0.10847 to 0.19153
0.15300 to 0.24700
0.09126 to 0.20874
0.14521 to 0.25514
0.25514 to 0.26521
Transcribed Image Text:Elwin Osbourne, CIO at GFS, Inc., is studying employee use of GFS e-mail for non-business communications. A random sample of 200 e-mail messages was selected. Thirty of the messages were not business related. The 90% confidence interval for the population proportion is 0.10847 to 0.19153 0.15300 to 0.24700 0.09126 to 0.20874 0.14521 to 0.25514 0.25514 to 0.26521
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