Probability from z score, The lifetime of a super tough AAA

Probability from z score

Reference no: EM13106531

The lifetime of a super tough AAA battery is normally distributed wit mean of 28.5 hours and standard deviation of 5.3 hours. For a battery selected at random, what is the probability that the lifetime will be? Use given data, requirement and sketch of normal curve labled to solve;

a) 25 hours or less

b) 34 hours or more

c) between 25 and 34 hours

Reference no: EM13106531

Questions Cloud

Information about z-score : The mean statistic test scores is 64 and the standard deviation is 6.0. For the biology test scores, the mean is 25 and the standard deviation is

Compute the change in the internal energy of a thermodynamic : 1) Compute the change in the internal energy of a thermodynamic system under the following scenarios: (i) 50 J of heat added and 40 J work extracted, (ii) 50 J of heat added and 75 J work extracted,

Hypothesis testing of mean-sample z test : At the time she was hired as a server at the Grumney Family restaurant, Beth Brigden was told, "You can average at least $20 a day in tips." Over the first 35 days she was employed at the restaurant

Explain advantages of entering market early : What are some of the advantages of entering a market early? Are there any advantages to entering a market late?

Probability from z score : The lifetime of a super tough AAA battery is normally distributed wit mean of 28.5 hours and standard deviation of 5.3 hours. For a battery selected at random

Calculate the values of the three charges : Why three points? Would two have been enough? Describe what changes would occur, if any, in the electric field pattern and in the equipotential curve you measured if the magnitudes of your three charges were increased, all by the same factor.

How to apply problem-solving process to each step of process : Suppose you are the Dorfman Pacific consultant. Apply problem-solving process and present answers to each step of the process.

Find the total charge on each face : A square plate of copper with 47.0 cm sides has no net charge and is placed in a region of uniform electric field of 79.0 kN/C directed perpendicularly to the plate. (a) Find the charge density of each face of the plate. (b) Find the total charge ..

Which the angle of incidence exceeds the critical angle : For the cases in which total internal refection is possible from either the top or bottom surface of a layer, determine the amount by which the angle of incidence exceeds the critical angle.

User Account

All Pages