Data Were Collected on Annual Personal Time (In Hours) Taken

question 9

Multiple Choice

Data were collected on annual personal time (in hours) taken by a random sample of 16 women and 7 men employed by a medium sized company.The women took an average of 24.75 hours of personal time per year with a standard deviation of 2.84 hours.The men took an average of 21.89 hours of personal time per year with a standard deviation of 3.29 hours.The correct 90% confidence interval for the difference between women and men in the average number of hours of personal time taken per year is ________________________ .

• A)0.30 to 5.48 hours
• B)-0.50 to 3.21 hours
• C)-4.67 to -0.62 hours
• D)1.27 to 6.89 hours
• E)None of the above.

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