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The mean time to expose a single panel in a circuit-board plant is two minutes with a standard deviation of 1.5 minutes.
a. What is the natural coefficient of variation?b. If the times remain independent, what will be the mean and variance of a job of 60 panels? What will be the coef cient of variation of the job of 60?c. Now suppose times to failure on the expose machine are exponentially distributed with a mean of 60 hours and the repair time is also exponentially distributed with a mean of two hours. What are the effective mean and CV of the process time for a job of 60 panels?
4Al + 3O2 = 2Al2O3 determine the percent yield if 124 g Al2O3 are produced when 3.0 moles of Al are reacted
Mariddie is a Western Apache teenager who has just experienced menarche. What reaction should she expect from those around her? There will be an elaborate celebration in her honor.
Each of these systems functions, independently of the others, with probability 0.98. As long as at least one of these systems is functioning, this shuttle Component functions successfully.
Capstone research proposal- about two pages.
What are positions of Nathan Deal, Roy Barnes, and John Monds on casino gambling?What is the proper way to cite internet sources?
The solubility of silver sulfate in water is 0.223% (w/v) at 35°C. Calculate the solubility product of this salt at this temperature
In the modern world, few Americans grow up in the traditional nuclear family. The high divorce rate has led to an increase of blended families in which one or both partners have children from previous relationships that will need to blend into the ne..
Describe the 3n phases of educational change process including initiation, implementation and institutionalization according to Michael Fullan.
calculate the solubility of Ca(OH)2 in a 0.469M Cacl2 solution at 31 Degrees, given the Ksp of Ca(OH)2 is 4.96*10^-6. give answer in milli molar units.
Given what we know about brain mechanisms in memory, are our memories accurate? Explain your answer using information on how memories are stored in the brain.
Compute a 90% confidence interval for the population mean, based on the sample 25, 27, 23, 24, 25, 24, and 59. Change the number from 59 to 24
Assume that the population proportions are to be estimated from the samples described. Find the margin of error and the 95% confidence interval.
Most traffic lights are set so that there is enough time for pedestrians to cross the road safely. A recent study indicates that a large number of elderly cannot get across the road in the usual 15 seconds allowed.
Solve the following questions involving fundamental operations on polynomials. Find p(x) + 4q(x) given p(x)=4x4 + 10x3 - 2x2 + 13 and q(x) = 2x4+ 5x2 - 3
A company's employees are working to create a new energy bar. They would like the two key ingredients to be peanut butter and oats, and they want to make sure they have enough carbohydrates and protein in the bar to supply the athlete.
Monitoring the ecological health of the Everglades-the bottom temperatures are recorded at the Garfield Bight station and the mean of 19.7 degrees C is obtained for 62 temperatures on 62 different days.
Probability values based on normal distribution - old exit exam followed a normal distribution
The amount of food consumed by each rat with humidity set at 20% and again with humidity set at 60%. For this study, identify (a)the population and (b) the sample.
Determine the sample size necessary to estimate a population proportion to within .03 with 90% confidence assuming you have no knowledge of the approximate value of the sample proportion.
Given the hypothesis Ho: u=400, you conduct a sample of 12 observations and obtain a sample mean of 407 and a sample standard deviation of 6. Using a .01 significance level to test to see if you would reject Ho, what would be the value of your cri..
If you take the mean weights for random groups of 10 adults and form a new distribution, how will this new distribution compare to distribution of individuals?
Discuss an example where you would use a test of hypothesis for in your professional life, personal life, education or politics. Provide sufficient details so that the context is clear and also discuss if the example involves:
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