What is a 50 percent confidence interval for the actual mean

Reference no: EM13186435

The number of staff personnel needed to handle patients at a medical center is determined by the mean time that patients must wait before being attended to by a physician. For a random sample of 100 previously recorded emergencies, the sample mean waiting time was 72 minutes, with a standard deviation of 28 minutes.

1. What is a 50 percent confidence interval for the actual mean waiting time?

2. What is a 99 percent confidence interval for the actual mean waiting time?

Reference no: EM13186435

Questions Cloud

A sodium hydroxide solution were added to a solution contain : If a sodium hydroxide solution were added to a solution containing lead(II) ions, sodium ions, nickel(II) ions, and potassium ions, which ion(s) would remain in the supernatant? (Select all that apply.)

Why vgi losing money in the business sector : Cooper Bank is considering making a loan to Valles Global Industries to buy a machine tool worth $300 million at 1% interest. The tool has no salvage value and is depreciated over 3 years by sum-of-years digits. In this state, VGI pays 50% tax. ..

Explain helium tank is pressurized : A 11.0-L helium tank is pressurized to 26.0 atm. When connected to this tank, a balloon will inflate because the pressure inside the tank is greater than the atmospheric pressure pushing on the outside of the balloon.

Research paper on the turing and von neumann models : Write a two page research paper on the Turing and von Neumann models.

What is a 50 percent confidence interval for the actual mean : The number of staff personnel needed to handle patients at a medical center is determined by the mean time that patients must wait before being attended to by a physician. For a random sample of 100 previously recorded emergencies, the sample mean..

Make a mo energy-level diagram for no : prepare a MO energy-level diagram for NO, showing clearly how the atomic orbitals interact to form MOs.

How to use straight-line depreciation to pay tax : Valles Global Industries (VGI) is considering selling a product to SohnCo. The contract sells parts for revenue of $32 million a year for 15 years. Their initial investment is $150 million and the equipment has no salvage at 15 years. They esti..

Explain what is the molar mass of the protein : what is the molar mass of the protein? A solution of 7.50 mg of a small protein in 5.00 ml of aqueous solution has an osmotic pressure of 6.80 torr at 23.1 degrees celcius.

Find the sum of the perimeters and the sum of the areas : find the sum of the perimeters and the sum of the areas of all the squares, including the initial one.

User Account

All Pages