Confidence Intervals
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A random sample of 275 individuals working in a large city indicated that 60 are dissatisfied with their working conditions. Based upon this, compute a 90% confidence interval for the proportion of all individuals in this city who are dissatisfied with their working conditions. Then complete the table below.
Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places.
What is the lower limit of the 90% confidence interval?
What is the upper limit of the 90% confidence interval?
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Solution Summary
Upper and lower limits of confidence intervals are investigated. The solution is detailed and well presented.
Education
- BA, Ain Shams University, Cairo Egypt
- MBA, California State University, Sacramento
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