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Let x be a random variable with fx(x) = (2/X^3) if x>1. Compute P(x>k) and compare it with the upper bound on this quantity given by Markov's inequality.
The data is shown on the table. Is there a difference in mean SBP between treatments? Run the appropriate test at α= 0.05
Let X be the number of individuals in a simple random sample of size 50 from this population who get some relief by taking ibuprofen, and let pˆ be the sample proportion. Find the probability that the value of p is in the interval
Find the probability that fewer than 5 are satisfied with the airlines. (c) Find the probability that 8 or more are satisfied with the airlines.
The average salary of managers in the advertising industry is $180,000 per year. Suppose we would like to take a sample of managers at a new company ABC
X2 is college board score (range 200-800). Use the multiple regression equation to predict college gpa for a high school gpa of 3.6 and a college board score of 600.
below are two groupsa 15 22 19 25 16b 32 25 27 33 21 35 30a test to see if the variances are the same give the null and
The shoppers are grouped in three age categories, under 30, 30 up to 50 and 50 and over. The data is summarized in the table. Let A be the event that a randomly selected shopper is under 30. Find the probability of A.
What is the probability that Sara will die in her 60 th year? Using this probability and the $50,000 death benefit, what is the expected loss to Big Rock Insurance?
Neckwarmers. Mountainside Fleece sold 40 Neckwarmers. Solid-color neckwarmers sold for $9.90 each and print ones sold for $12.75 each.
Flights arriving at the airport spend anywhere from 50 to 130 minutes in security before unloading passengers. If the unloading times follow the uniform probability distribution, find the average unloading time.
An accounting firm has recently recruited six graduates: three men and three women. Three of the graduates are to be selected at random to work in the firms suburban office. Construct a probability tree.
Provide an overview of the problem you identified. What are some research components that could be measured in order to address the research question or hypothesis you identified? How might a researcher obtain that information?
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