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Use the Cramer-Rao lower bound to identify the best unbiased estimate of the concerned parameter.
1) xi~Poi(λ);the parameter is λ.2) xi~Exp(λ);the parameter is λ.3) xi~Gamma(α,λ);the parameter is λ; α is taken as known.
For each of the following cases, find the asymptotic distribution of the MLE of the indicated parameter and find formulas for approximate standard errors of the MLE. 1) Poi(λ)2) Exp(λ)3) U[0,θ]
Would it be reasonable to conclude that the 5 percent of the employees are not able to pass the random drug test?
Compute the incidence proportion or the risk ratio that compares group 1 to group 0, and compute the Incidence proportion or the risk ratio which compares group 2 to group 0. Then post a summary of your findings.
You read a report that says, "On the basis of the simple random sample of 100 high school seniors that took the SATM test this year, a confidence interval for µ is found to be 512.00 ± 25.76." What was the confidence level used to calculate this..
Can you test the significance of the relationship between physical activity level and systolic blood pressure, adjusting for age, and weight, given the ANOVA table above?
Graph the least-squares line on your scatter diagram. Be sure to use the point (x, y) as one of the points on the line.
Using one proportion z test to find whether or not to support the claim - There is little evidence to reject H 0 , therefore they conclude the tvs are 20 pounds on average.
Is the school district correct in assuming the girls are equal in performance to boys. They are 95% sure their assumption is correct.
They wish to conduct a survey of their students and find a simple random sample of 50 Freshmen, 40 Sophomores, 35 Juniors, and 30 Seniors.
A group of students collected data at the Cedar Point amusement park and reported that the "wait time" to ride the "Top Thrill Dragster" roller coaster is consistently distributed within a range of 40 minutes to 90 minutes.
Suppose the weights of full boxes of a certain kind of cereal are normally distributed with a population standard deviation of 0.29 ounces.
Is there significant evidence that this production run doesn't meet specifications? Use a 1% level of significance.
At the 5% significance level, if the sample proportion is .45, and the standard error of the sample proportion is .035, the appropriate conclusion would be:
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