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The random variable X the time to failure (in thousands of miles driven) of fie signal lights on an automobile has a Weibull distribution with a = 04 and B = 2.
(a) Find the density, mean, and variance for X (r) Find the reliability function for X
(c) What is the reliability of these lights at 5000 miles? At 10,000 miles?
(d) What is the hazard rate function?
(e) What is the hazard rate at 5000 miles? At 10,000 miles?
(f) What is the probability that the lights will fail during the first 3000 miles driven?
State the appropriate null and alternative hypotheses. State the critical value rule using the 5 percent level of significance. Calculate your test statistic. Show your calculation. What is your decision regarding the null statement
How many degrees of freedom are there?- The smallest expected count will be in the 1989/No cell. What is it?- Check the assumptions and conditions for inference.
Calculate the descriptive statistics from the data and display in a table. Be sure to comment on the central tendency, variability and shape for each variable.
A bank loan officer knows that 12% of the bank's mortgage holders lose their jobs and default on the loan in the course of 5 years. - Given that one of her mortgage holders just lost his job, what is the probability that he will now default on the l..
When testing for different interactions, how can you determine the major factor? Why is it important to even know if an interaction is occurring?
In which study could the experimenter effect be more of a problem: a study in which the response of interest is cholesterol levels
List SKU which was purchased the most. List two SKUs that were purchased most frequently together. List three SKUs that were purchased most frequently together.
Following are the data collected. Should the head of the Bureau be concerned about the time taken at lunch by employees? Why?
if the temperature at which a certain compound melts is a random variable with mean value 120 degree celsius and
the weight of a bag of corn chips is normally distributed with a mean of 22 ounces and a standard deviation of
according to cnnusa today poll appox. 70 of americans believe the irs abuses its power. let x equal the number of
The yields in metric tons per hectare of potatoes in a randomly selected sample of 10 farms in a small region are 32.1, 34.4, 34.9, 30.6, 38.4, 29.4, 28.9.
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