# Question

Find the standard error of the effects for the experiment in Exercise 8.4. Using the standard errors as a guide, what factors appear significant?

In exercise

In exercise

## Answer to relevant Questions

Suppose that only the data from replicate I in Exercise 8.4 were available. Analyze the data and draw appropriate conclusions. A component has a Weibull time-to-failure distribution. The value of the scale parameter is . Suppose that the shape parameter is . Find the mean and variance of the time to failure. What is the reliability at 600 ...Fifteen observations on the time to failure of a unit are as follows: 173, 235, 379, 439, 462, 455, 617, 41, 454, 1083, 371, 359, 588, 121, and 1066. Is the Weibull distribution a reasonable choice for the time to failure ...Consider the parallel system shown in the accompanying figure. The reliability of each component is provided in the figure. Assuming the components operate independently, calculate the system reliability. Continuation of Exercise 9.32. For the data in Exercise 9.32, find a 95% confidence interval on the MTTF and the reliability at 200 hours, assuming that the lifetime has an exponential distribution. In exercise 9.32Post your question

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