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A particular product is known to have an exponential failure time distribution with a mean of 12 months.
a. Find the probability it will fail in less than 9 months.
b. What is the reliability at 15 months?
c. Determine and graph the hazard rate for this product.
The simple coefficient of determination is the proportion of total variation explained by the regression line.
Could mud-wrestling be the cause of a rash contracted by University of Washington students in the spring of 1992? Two physicians at the University of Washington health center wondered this when one male and six female students complained of rashes..
The sat scores attainted by the students in nyc are approximately normally distributed with a mean of 500 and a standard deviation of 80. Find the percentage of students who score less than 700.
Below are revenue and profit (both in $ billions) for nine large entertainment companies.
Determine the probability of choosing the area code at random which ends in the odd number if first digit cannot be 1 or 0?
What is the possible uses of regression and correlation analysis in doctoral-level research? Would I be able to use these techniques in my dissertation, or any application in other areas?
What are confounds? Give an example of a design that has three confounds. Describe three ways to alter the design to address these confounds and explain the advantages and disadvantages of each.
Fast Service Truck Lines uses the Ford Super Duty F-750 exclusively. Management made a study of the maintenance costs and determined the number of miles traveled during the year followed the normal distribution. The mean of the distribution was 60..
Find the probability that the number of who consider themselves basketball fans is :
Sample mean varies from population mean of 10 pounds at 5 percent level of significance using two-tailed test. Compute test statistic for the sample data.
In both cases, give a number of data points, n, and a correlation coefficient, r. Draw a number of data points, n, and a correlation coefficient, r. Tell whether the correlation is significant at 0.05 or 0.01 level, explain.
Compute the variance and standard deviation of the number that will arrive within two days.
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