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Jack likes to go fishing. While waiting for the fishes to bite, he formulates the following model for the process: fishes bite according to a Poisson process with intensity 4 bites per hour. Biting fishes are caught independently, and on average only one in two times.
a) What is the probability that six fishes bite during the first two hours?
b) What is the probability that he fails to catch any fishes during the first two hours?
c) What is the probability that, during the first two hours, six fishes bite and two of these are caught?
Use your answers to part (a) to determine whether there is any evidence to suggest that the mean coping skills level for male basketball players is different.
a. What is the union of two events? b. What is the probability of "one event or another" if you know,
What measure of central tendency is most sensitive to skewness and which is least sensitive? What are measures of central tendency used for? What are measures of dispersion used for?
a) What is the probability a student will remember to study every day of the week?
What is meant by the sensitivity of a dependent measure? What are ceiling and floor effects?- What are demand characteristics? Describe ways to minimize demand characteristics.
the distribution ages for students at the state college is positively skewed with a mean of 21.5 and a standard
the citizens of a certain community were asked to choose their favorite pet. the pie chart below shows the distribution
How can you calculate a process standard deviation when the UCL and LCL are known?
If P(a
Do you have ESP? A researcher looking for evidence of extrasensory perception (ESP) tests 500 subjects. Four of these subjects do significantly better.
In the least-squares line y = 5 - 2x, what is the value of the slope?
Suppose a friend of a friend claimed to have ESP and agreed to sit just on time and guess at 100 cards. Suppose she made 36 matches. Calculate the probability of this many, or more, matches if only chance is at work, and carefully write a conclusion.
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