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Let X1;X2; : ;Xn be iid random variables from an exponential distribution with unknown mean EX1 = m. Suppose that a scientist is interested in estimating g() = P(X1 > a) where a > 0 is fixed.
Computer simulation for the parametric estimator. Simulate B = 10000 data sets each of size n = 100. For each data set, compute and save g(m hat). Then do the following: Plot the histogram of B values of g(m hat)and sqrt(n)*[g(m hat)- g(m )]
Determine the probability that a randomly selected exam will have a score of at least 71? What percentage of exams will have scores between 89 and 92?
Compare the two sets and describe what you discover. The following data sets shows the ages of the first seven presidents (President Washington through President Jackson) and the seven most recent presidents including President Obama. Age is given..
Use the mean, median, and mode to make a statement about the difference in performance for city and highway driving.
How large should n be so that the standard deviation of is no more than 0.01 and sampling distribution
Which of the following assumptions is not made for the F-test for comparing three or more means?
Oxytocin is a naturally occurring brain chemical that is nicknamed the "love hormone" because it seems to play a role in the formation of social relationships such as mating pairs and child-parent bonding.
A particular fast food restaurant is located near a University. 40% of the customers are students. Students prefer the spicier items.
The statistical research was done primarily through the internet from governmental regulated sources. Estimates were used in consideration of absence of actual information.
The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?
Translate this into a statistical hypothesis-testing problem and carry out the test. Be sure to give the null and alternative hypotheses, the value of the test statistic, the p-value, and your conclusions.
What is the appropriate inferential statistical test for the case scenario? Why?
Using Non-parametric test, whether there is significant difference in the motor coordination skills.
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