A manager at a power comnpany monitored the employee time required to process high efficiency lamp bulb rebates. A random sample of 49 applications gave a sample mean time of 4.0 minutes and a standard deviation of 1.0 minute. Construct a point estimate for the population mean time to process mean u, and give

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A manager at a power company monitored the employee time
required to process high efficiency lamp bulb rebates. A random sample of 49 applications
gave a sample mean time of 4.0 minutes and a standard deviation of 1.0 minute.
Construct a point estimate for the population mean time u to process mean u, and give
its 80% erro margin.
Transcribed Image Text:A manager at a power company monitored the employee time required to process high efficiency lamp bulb rebates. A random sample of 49 applications gave a sample mean time of 4.0 minutes and a standard deviation of 1.0 minute. Construct a point estimate for the population mean time u to process mean u, and give its 80% erro margin.
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