Find probability that average lifetime is less

Assignment Help Basic Statistics

Reference no: EM13121125

The lifetime of a 2-volt non-rechargeable battery in constant use has a normal distribution with a mean of 516 hours and a standard deviation of 20 hours.

You take a random sample of four 2-volt non-rechargeable batteries. What is the probability that their average lifetime would be less than 510 hours? Use your calculator to solve this problem and give your answer as a number between 0 and 1, rounded to 3 decimal places.

Reference no: EM13121125

Questions Cloud

Calculate the theoretcial yeild : .914g sample of stannous flouride gives a 1,078g precipitate of stannous phosphate. calculate the theoretcial yeild?

Solve a statistical probability : Conditional Probability Example I'm trying to set up an excel spreadsheet to solve a statistical probability.Patients 23% (smokers) -18% have a chance of contracting a serious illness

Find relatively more positive ions : During the neuron's resting state, large amounts of positive ______ ions are found in the extracellular fluid, whereas relatively more positive ______ ions are found inside the cell.

Equity and the balance in sloanes investment account : On January 1, 2007, Sloane Co. purchased 25% of Orr Corp.'s common stock; no goodwill resulted from the purchase. Sloane appropriately carries this investment at equity and the balance in Sloane's investment account was $720,000 at December 31, 20..

Find probability that average lifetime is less : What is the probability that their average lifetime would be less than 510 hours? Use your calculator to solve this problem and give your answer as a number between 0 and 1, rounded to 3 decimal places.

Example of a polynomial with degree : Give an example of a polynomial with degree 3 such that when factored, it contains the two factors (x+5) and (2x-1), i.e., the polynomial looks like (x+5)(2x-1)(?).

What pressure will the gas exert : A 24 L sample of a gas at fixed mass and constant temperature exerts a pressure of 3.0 atm. What pressure will the gas exert if the volume is changed to 16 L?

Research paper based on "the color purple" : writing a 10 page research paper based on "The Color Purple".

Determine the probability that an employee selected : Using excel I'm trying to create a probability tree showing all marginal, conditional and joint probabilities. Im also trying to develop a joint probability table and determine the probability that an employee selected at random would fail the man..

User Account

All Pages