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It has been shown by analysis of measurements data that file sizes in bytes on Unix based WWW servers follow a Pareto distribution as shown below with a = 1.2
F(x) = 1 - (2730/x)a x > 2730
(a) What is the median file size in bytes
(b) What is the percentage of files that are between 6K bytes and 8K bytes.
(c) Assuming that an IP packet has a maximum 900 byte payload, determine the following. What is the probability that a file transfer requires more than 10 packets? repeat for 100 or more?
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.
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Drawing the standard normal curve and indicating the area representing the probability and
To determine if this is evidence that students perform worse under uncomfortable conditions, The P-value of a test
For population with mean of µ=60 and a standard deviation of s=24. Determine the z score corresponding to each of following samples.
Give an example of a hypothesis test you could perform at work or at home. State what the Null and the Alternative hypotheses would be in your test.
Suppose the sample variance for 3 parts turns out to be S2 = .0005. Use a=.05 to test whether the population variance specification is being violated.
A furniture store claims that a specially ordered product will take, on average, mean= 35 days (5 weeks) to arrive. The standard deviation of these waiting times is 5 days.
A new product has the following profit projections, associated probabilities, and indifference probability:
The linear correlation coefficient, r, measures the strength of the linear relationship the variables in a set of ordered pairs (x,y). What is the maximum and minimum values for r?
Describe the chi-square test of independence. How is this test different from the chi-square goodness-of-fit test? Are the assumptions underlying each of these tests the same?
Determine the probability that particular call lasted between 110 and 180 seconds?
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