Find probability-random sample bulbs will have average life

Assignment Help Basic Statistics

Reference no: EM13136580

An electrical firm manufactures electric light bulbs that have a length of life which is normally distributed with mean and standard deviation equal to 500 and 50 hours, respectively. Find the probability that a random sample of 15 bulbs will have an average life of less than 475 hours.

Reference no: EM13136580

Questions Cloud

Public policy and social and political values : How might you define public policy? How do social and political values play a significant role in public policy? Why do you think there are varying philosophies and theories regarding governance and public policy?

Events affecting the firm balance sheet : Sources and Uses of Cash. State how each of the following events would affect the firm's balance sheet. State whether each change is a source or use of cash.

What is the corresponding change in temperature : one day you notice that the outside temperature increase by 16 degrees Fahrenheit between your early morning jog and your lunch at noon. what is the corresponding change in temperature in the Celsius and Kelvin scales?

Determining public policy issue : Choose one of the public policy issues--poverty, corporate welfare, or outsourcing, How did your chosen public policy come about?

Find probability-random sample bulbs will have average life : Standard deviation equal to 500 and 50 hours, respectively. Find the probability that a random sample of 15 bulbs will have an average life of less than 475 hours.

Establishing public policy : What steps should be taken to establish a given public policy? Do you think the average citizen is aware of how policy is formulated and implemented?

Compute the budgeted revenues in yen : Dirt Bike Co in Japan has a division that manufactures two-wheel motorcycles. Its budgeted sales for Model G in 2003 is 800,000 units. Dirt Bike's target ending inventory is 100,000 units, and its beginning inventory is 120,000 units.

Calculate the total kinetic energy of the gaseous mixture : A 100.-L flask contains a mixture of methane (CH4) and argon at 25C. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650.

Citizen policy choices and agenda setting : How does cultural change influence citizen policy choices and agenda setting? Provide two examples to explain the influence of cultural change.

User Account

All Pages