What is the confidence interval estimate of the population

Assignment Help Business Economics

Reference no: EM13152155

The mean number of hours of flying time for pilots at Continental Airlines is 49 hours per month (The Wall Street Journal, February 25, 2003). Assume that this mean was based on actual flying times for a sample of 100 Continental pilots and that the sample standard deviation was 8.5 hours.

At 95% confidence, what is the margin of error?

What is the 95% confidence interval estimate of the population mean flying time for the pilots?

The mean number of hours of flying time for pilots at United Airlines is 36 hours per month. Use your results from part (b) to discuss differences between the flying times for the pilots at the two airlines. The Wall Street Journal reported United Air- lines as having the highest labor cost among all airlines. Does the information in this exercise provide insight as to why United Airlines might expect higher labor costs?

Reference no: EM13152155

Questions Cloud

What does green growth on an eosin methylene : What does green growth on an Eosin methylene blue plate indicate and which two organisms are known to be able to do this?

Computing cost of common equity : The yield to maturity on the company's outstanding bonds is 9 percent, and its tax rate is 40 percent. Percy's CFO estimates that the company's WACC is 9.96 percent. What is Percy's cost of common equity?

Determining taxable income-cash dividends from stocks : Wilma is a widow, age 80 and blind, who is claimed as a dependent by her son. During 2010, she received $4,800 in Social Security benefits, $2,200 in bank interest, and $1,800 in cash dividends from stocks. Wilma's taxable income is ??

What mass of naoh is needed : What mass of NaOH is needed to precipitate the Cd2+ ions from 48.0 mL of 0.500 M Cd(NO3)2 solution?

What is the confidence interval estimate of the population : What is the 95% confidence interval estimate of the population mean flying time for the pilots? The mean number of hours of flying time for pilots at United Airlines is 36 hours per month.

Determining after-tax cost of debt : Heuser believes it could issue new bonds at par that would provide a similar yield to maturity. If its marginal tax rate is 35 percent, what is Heuser's after-tax cost of debt?

What is the partial pressure of the co2 : if CO2 gas is collected over water at 25 degrees C and 775torr, what is the partial pressure of the CO2? The vapor pressure of water at 25degrees C is 23.8torr.

Recognizes gain on the transfer : In return, she receives 80% of the stock in Goldfinch Corporation (fair market value of $180,000) and a long-term note (fair market value of $20,000) executed by Goldfinch and made payable to Eileen. Eileen recognizes gain on the transfer of:

What is the probability that the sample proportion p : What is the sampling distribution of p ? for this study? What is the probability that the sample proportion p?

User Account

All Pages