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Each millisecond at a telephone switch, a call independently arrives with probability p. Each call is either a data call(d) with probability q or a voice call (v). Each data call is a fax call with probability r. Let N equal the number of milliseconds required to observe the first 100 fax calls. Let T equal the number of milliseconds you observe the switch waiting for the first fax call. Find the marginal PMF PT (t) and the conditional PMF PN|T (n|t). Lastly, find the conditional PMF PT|N (t|n).
manufacture of a certain component requires three different machining operations. machining time for each operation has
This problem related to Basic Statistics and it is about computing the change in the average expenditure on students of a school in two years. The change in average expenditure needs to be noted
Develop a scatter diagram with price on the vertical axis and the size of the home on the horizontal. Does there seem to be a relationship between these variables? Is the relationship direct or inverse?
For the statement: The mean amount of Pepsi in cans is at least 12 oz. Express the null hypothesis and the alternative hypothesis in symbolic form.
Create a dot plot and a box plot to represent this data. If we create a sample by picking every 3rd data from the population, how would your answer to part a change? Show your work
For each of the following problems, assume that the homogeneity of variance assumption has not been met and that you will need to use the adjusted Welch statistic.
Set up the null and alternative hypotheses to test whether the proportion of MBA students who expect to stay at their first job five years or more is less than one-fourth of all U.S. MBA students.
Describe the measures of central tendency. Under what condition(s) should each one be used
1.suppose you hear an old-timer say why in my day kids were much more respectful and didnt cause as much trouble as
a hockey team has 6 forwards 4 defensemen and 2 goalies. at any time 3 forwards 2 defensemen and 1 goalie can be on the
A certain electronics company produces a particular type of vacuum tube. It has been observed that, on the average, three tubes of 100 are defective. The company packs the tubes in boxes of 400. What is the probability that a certain box of 400 tu..
Suppose all cities are directly connected except B and C are not directly connected. How many different flight plans are available to the salesperson?
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