(See Steps) Excel file BagComplaints gives the number of days it took to resolve a random sample of 50 complaints concerning airline baggage handling. Construct
Question: Excel file BagComplaints gives the number of days it took to resolve a random sample of 50 complaints concerning airline baggage handling.
- Construct a 95% confidence interval estimate of the population mean number of days between receipt of a complaint and resolution of the complaint.
- Explain the meaning of the interval you constructed in part (a).
- What sample size would be needed to limit the margin of error to ±5 days with 95% confidence? Use the sample standard deviation rounded to the nearest number of days to estimate the population standard deviation.
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