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Let X be a random variable representing the time between successive arrivals at a checkout counter in a supermarket. The values of X in minutes (rounded to the nearest minute) are
1 2 3 7 11 4 13
12 7 3 2 11 7 2
Assume that the pdf of X is f(x) = (1/θ)e-(x/θ). Use these data to ?nd MLE θˆ. How can you use this estimate you have just derived?
Find the probability that a randomly selected employee earns less than $5.43.
discrimination the u.s. supreme court considered a case involving the exam for firefighter lieutenant in the city of
In recent times it has been suggested that university graduates can be divided into two groups, those who graduated from a business degree and those who did not. Suppose you are working for the Government and have been asked to determine whether thi..
A sample of n observations is taken from a population. When performing statistical inference about a population variance, the appropriate chi-square distribution has:
Permutation chi square test to a regular chi square table test. What happens in situations, where assumptions of a chi square test are violated? Discuss.
Find the probability of an untrained dog performing as well as Maggie. Is it unusual for an untrained dog to do as well as Maggie?
How are the degrees of freedom computed for the independence test? Generally, how would the null and alternative hypotheses be stated for the chi-square independence test?
Sketch a histogram of these data and give the modal class.
Explain which parts of the sample space are being double counted on both sides of this equation and which parts are being counted once.
many retails stores offer their own credit cards. at the time of the credit application the customer is given a 10
The time it takes a student to finish a electronics test has a uniform distribution between 50 and 70 minutes.
Determine the point estimate and 95% confidence interval for the mean family dental expenses of all employees of the company.
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