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Suppose that the continuous-time stochastic process {X(t),t ≥ 0}, whose state space is {0,1}, spends an exponential time with parameter 1 in a state the first time it visits this state. The second time it visits a state, it stays there an exponential time with parameter 2. When both states have been visited twice each, the process starts anew.
Using Theorem 3.15 show that PC correlation loadings extracted from a covariance matrix are identical to those from a correlation matrix if the variances of the variables are equal
Write an expression for the probability that during a given 1-min period, all of the operators receive exactly the same number of requests.
water is pumped from a lake through an 8-in pipe at a rate of 10 ft3s. if viscous effects are negligible what is the
What is the proportion of people surveyed that rated the subway system from 3 to 4. What is the proportion of people surveyed rated the Subway System from 1 to 3.
Verify that this is valid density function. Find out probability that weight is smaller than 24 ounces.
What is the probability he is two blocks or less (walking on streets) from the store? What is his average walking distance (using blocks-no "diagonals") from the store?
the project requires you to use the statistical techniques learned in this class. you may make up data as you like
In a speech during her campaign for reelection, a Republican candidate claims that 55% of regis- tered Democrats in her county intend to vote for her.
q1. a survey was conducted in five countries.the percentages of respondents who said that they eat out once a week or
Determine a 90% confidence interval on difference in mean number of production units for two shifts. Compute 99% confidence interval for part A.
A drug company is measuring levels of oxygenation in patients after receiving a test medication. As the researcher, you are interested in whether Group I, which received the medication, has the same oxygenation levels as Group II, which did not.
Suppose that 20% of all Internet users have posted photos online. A sample survey interviews 1555 users. What is the probability that 300 or fewer people in the sample have posted photos online?
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