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he manufacturer of a laser printer reports the mean number of pages a cartridge will print before it needs replacing is 12,375. The distribution of pages printed per cartridge closely follows the normal probability distribution and the standard deviation is 645 pages. The manufacturer wants to provide guidelines to potential customers as to how long they can expect a cartridge to last.
How many pages should the manufacturer advertise for each cartridge if it wants to be correct 90 percent of the time?
Assume that both samples are independant simple random samples from populations having normal distributions.
Capital punishment law is among the most complex bodies of law in the US. As a result of frequent errors, the Trial Judges Assn. has developed a special training course to try to cut down on the errors.
The third will be made an offer only if the committee should reject both the first and the second. How many possible ordered choices of three out of six candidates are there?
A single-sample acceptance attributes sampling plan is required to have a producer's risk of 0.06 for an acceptable quality level of 0.5% nonconforming, and a consumer's risk of 0.10 for a rejectable quality level of 5% nonconforming. Use Minitab ..
Recent actual and forecasted data for product XYZ is given in the following table.
You are planning to test a vaccine for a virus that has no vaccine. Since the disease is usually not serious, you will expose 100 volunteers to the virus. After some time, you will record whether or not each volunteer has been infected.
Use the value 20 for the population standard deviation of scores on this subsection.
Identify each variable in the formula for the binomial probability density function. Also, explain what the fraction: n! / (n-x)!x! calculates.
What are differences between dependent and independent samples? Provide examples. What are the implications for determining the tests used to analyze data?
Find out correlation coefficient r, If student take 35 minutes to complete exam, what is his predicted score.
If the payoff from outcome A is twice the payoff from outcome B, then the ratio of these utilities will be.
A product is made up of two subsystems in parallel. Subsystem one consists of ten elements in series each with a failure rate of 1/100. The second subsystem consists of 5 elements in series each with a failure rate of 1/200. What is the overall re..
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