A)lifetime of hearing aid battery are normally distributed with mean of 50 hours and standard deviation...
A)lifetime of hearing aid battery are normally distributed with mean of 50 hours and standard deviation of 5 hours. find the probability that a randomly chosen battery lasts between 42 and 58 hours . mark the region in a normal distribution curve
b)find the k value such that p(k<z<1.2)=.6
c+ in a fiber spinning process, the fiber strength is normally distributed with a mean of 75 n/m^2 and standard deviation of 5n/m^2. a customer informerd the fiber manufactuar.
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A)lifetime of hearing aid battery are normally distributed with
mean of 50 hours and standard deviation...
The lifetime of a battery in a certain application is normally distributed with mean = 16...
The lifetime of a battery in a certain application is normally distributed with mean = 16 hours and standard deviation o = 2 hours. a) What is the probability that a battery will last more than 19 hours? Select] b) Find the 10th percentile of the lifetimes. (Select] c) A particular battery lasts 14.5 hours. What percentile is its lifetime on? Select)
The fiber-spinning process currently produces a fiber whose strength is normally distributed with a mean of...
The fiber-spinning process currently produces a fiber whose strength is normally distributed with a mean of 75 N/m2 and a standard deviation of 8 N/m2. a. Find the probability that the strength of a randomly chosen fiber has a strength greater than 80 N/m2 b. Find the probability that the strength of a randomly chosen fiber has a strength between 71 N/m2 and 86 N/m2 c. Find the top 15% strongest fibers
The lifetime of a certain type of battery is normally distributed with mean value 10 hours...
The lifetime of a certain type of battery is normally distributed with mean value 10 hours (a) If a pack of 4 batteries is purchased, what is the probability that the average lifetime of the (b) How many batteries must be purchased such that the probability that their average lifetime is at and standard deviation 1 hour batteries in the package is at least 9 hours? least 9.5 hours is .99?
The lifetime of a certain type of battery is normally distributed with mean value 14 hours...
The lifetime of a certain type of battery is normally distributed with mean value 14 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.) hours
The lifetime of a certain type of battery is normally distributed with mean value 13 hours...
The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.) X hours
The lifetime of the battery of a certain make of cars is normally distributed with mean...
The lifetime of the battery of a certain make of cars is normally distributed with mean 5 years and standard deviation 6 months. An owner of this type of car wants to take a chance and replace the battery at the 3rd quartile of the distribution. In how many months he should have the battery replaced in case the battery lasts until then (round off to the nearest integer)?
The lifetime of a particular component is normally distributed with a mean of 1000 hours and...
The lifetime of a particular component is normally distributed with a mean of 1000 hours and a standard deviation of 100 hours. Find the probability that a randomly drawn component will last 1070 hours or less.
The lifetime of a certain type of battery is normally distributed with mean value 12 hours...
The lifetime of a certain type of battery is normally distributed with mean value 12 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.)
The lifetime of a certain type of battery is normally distributed with mean value 13 hours...
The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.)
The lifetime of a certain type of battery is normally distributed with mean value 13 hours...
The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. There are four batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.) xhours Need Help? Read It Talk to a Tutor
The lifetime of a battery in a certain application is normally distributed with mean = 16 hours and standard deviation o = 2 hours. a) What is the probability that a battery will last more than 19 hours? Select] b) Find the 10th percentile of the lifetimes. (Select] c) A particular battery lasts 14.5 hours. What percentile is its lifetime on? Select)
The lifetime of a certain type of battery is normally distributed with mean value 10 hours (a) If a pack of 4 batteries is purchased, what is the probability that the average lifetime of the (b) How many batteries must be purchased such that the probability that their average lifetime is at and standard deviation 1 hour batteries in the package is at least 9 hours? least 9.5 hours is .99?
The lifetime of a certain type of battery is normally distributed with mean value 14 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.) hours
The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. There are nine batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.) X hours
The lifetime of a certain type of battery is normally distributed with mean value 13 hours and standard deviation 1 hour. There are four batteries in a package. What lifetime value is such that the total lifetime of all batteries in a package exceeds that value for only 5% of all packages? (Round your answer to two decimal places.) xhours Need Help? Read It Talk to a Tutor
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