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A series system is one that needs all of its components to function in order for the system itself to be functional. For an n-component series system in which the component lifetimes are independent exponential random variables with respective parameters ?1, ?2, . . . , ?n, what is the probability that the system survives for a time t ?
The grades on a short quiz in biology were 0, I , 2, . . . , 10 points. depending on the number answered correctly out of I O questions. The mean grade was 6.7 and the standard deviation was.
Calculate a 99% (two-sided) confidence interval for the true average echo duration µ. (Round your answers to two decimal places.)
Three automobiles are selected at random, and each is categorized as having a diesel (S) or a nondiesel (F) engine (so outcome are SSS,SSF,ect.) If X= the number of cars among the three with diesel engines, list each outcome in S and its associate..
Find the average of the three trials, so the correct number of significant figures, and decide if these measurements gave an accurate result.
Write the null and alternative hypothesis symbolically and identify which hypothesis is theclaim. Is the test two-tailed, left-tailed, or right-tailed?Explain
Suppose you observe the investment performance of 400 portfolio managers and rank them by investment returns during the year.
If you know that a randomly chosen return shows an income of $100,000 or more, what is the conditional probability that the income is at least $1 million?
Using at least one example from the reading, explain how this gender expectation impacted American culture during the Jeffersonian period.
suppose that the proportions of blood phenotypes in a particular population are as followsa 0.42 b 0.10 ab 0.04
in 1990 the mean height of women 20 years old age or older was 63.7 inches with a standard deviation of 2.1 inches
What is the mean number of Product A that Bob inspects in one hour?
Is there any evidence to suggest that the population mean size of quagga mussels is larger in Lake Texoma than in Lake Mead?
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