Probability average time children watch television is more

Reference no: EM13149543

A study showed that the average number of hours children in the U.S. watch television each day is 4 hours with a standard deviation of 1.6 hours. If a group of 81 children is selected at random, what is the probability that the average time these children watch television is more than 3.5 hours a day?

Reference no: EM13149543

Questions Cloud

Method of verifying accuracy of recorded dividend income : Jones was engaged to examine the financial statements of Gamma Corporation for the year ended June 30, 2002. Having completed an examination of the investment securities, which of the following is the best method of verifying the accuracy of recor..

Do you think this is a violation of section of sherman act : There is no evidence that the bar owners ever directly communicated. Do you think this is a violation of Section 1 of the Sherman Act?

Company minimum attractive rate of return : Its terminal salvage value will be $23,000, with annual operating costs of $7,500 for labor and $2,500 for maintenance. The company's minimum attractive rate of return is 18%.

Determining income tax liability : He also paid $14,000 in mortgage interest, $1,800 in property taxes, $300 of credit card interest, and $1400 in job hunting expenses when he tried to change jobs in March. Determine Daniel's income tax liability for 2009 before any allowable credi..

Probability average time children watch television is more : If a group of 81 children is selected at random, what is the probability that the average time these children watch television is more than 3.5 hours a day?

Thinking model discussion : Which of the following is NOT one of the five steps in the lean thinking model discussed in the text? Choose one answer.

Sketch to decide how company proceed to reduce proportion : The company can alter the standard deviation. Use a sketch to decide how the company can proceed if they want to reduce this proportion by changing the standard deviation.

What is the total pressure (atm) exerted by the gas mixture : In a gas mixture the partial pressures are nitrogen 425 torr, oxigen 115 torr, and hellium 225 torr. What is the total pressure (atm) exerted by the gas mixture?

What are the advantages and disadvantages of breaking up : What are the advantages and disadvantages of breaking up these sport cartels? Explain.

User Account

All Pages