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A small domestic manufacturer of television sets places a three-year warranty on its picture tubes. Dur ing the warranty period, the manufacturer will replace the television set with a new one if the picture tube fails. The time in years until picture tube failure can be represented as the outcome of a random variable X with probability density function f(x) = .oose-·005x I10,001(x).
The times that picture tubes operate until failure can be viewed as independent random variables. The company sells 100 television sets in a given period.
a. What is the expected number of television sets that will be replaced due to picture tube failure?
b. What is the expected operating life of a picture tube?
question five factories reported the following numbers of minor accidents in a year.factory12345number of
The percentage rates of home ownership for 8 randomly selected states are listed below. Estimate the population variance and standard deviation for the percentage rate of home ownership with 99% confidence level.
If the politician is correct, what is the chance that you would observe 9 or fewer accidents with a teenager behind the wheel?
Explain how exponential functions can model both phenomena that grow and phenomena that decay. Note the main similarities and differences in the form of the function in each case.
Such that setting the two equations together we see that at t=4 seconds, the distance that Peter travelled is the same as the distance of the room 40ft.
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Find the sample size for the 95% confidence interval used to estimate the population proportion.
in the last decade society in general and the judicial system in particular have altered their opinions on the
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a. Assuming that s1 = 1.2 and s2 = 1.1, test the relevant hypotheses using a = .001. b. Compute b for the test conducted in part (a) when m1 - m2 = 6.
the goal of any supervised learning study is to be able to predict the response very
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