Explain why such an estimator does not exist

Reference no: EM131397194

1. The ideal estimator of location would have a smaller standard error than any other estimator we might use. Explain why such an estimator does not exist.

2. Under normality, the sample mean has a smaller standard error than the trimmed mean or median. If observations are sampled from a distribution that appears to be normal, does this suggest that the mean should be preferred over the trimmed mean and media.

Reference no: EM131397194

Questions Cloud

Determine the required area of tension reinforcement : determine the required area of tension reinforcement to satisfy all the ACI Code requirements for strength and minimum reinforcement area. Select bars and provide a sketch of your final section design.

Decsribe feature bloat as it relates to marketing : Decsribe feature bloat as it relates to marketing example Geek Squad found its niche through this method. describe customer adoption as it relates to marketing.Why do you think these products failed?

Why length of confidence interval for trimmed mean shorter : In the previous problem, the length of the confidence interval for µ is 257.6 - 200.7 = 56.9 and the length based on the trimmed mean is 244.9 - 196.7 = 48.2. Comment on why the length of the confidence interval for the trimmed mean is shorter.

What was left on presents for friends : John took all his money from his savings account. He spent $110 on a radio and 4/11 of what was left on presents for his friends. John then put 2/5 of his remaining money into a checking account and donated the $420 that was left to charity. How m..

Explain why such an estimator does not exist : The ideal estimator of location would have a smaller standard error than any other estimator we might use. Explain why such an estimator does not exist.

Write one page about revitalizing growth for the case : Revitalization can require the rebranding of a company from the inside out. Revitalization can involve updating the brand's products and product attributes with better, demanded features.Revitalization can require repackaging for a more contemporary ..

Compare the lengths of the confidence intervals : Compare the lengths of the confidence intervals based on the mean and 20% trimmed mean. Why is the latter confidence interval shorter?

Prepare a tabular analysis : Exercise - Transactions made by Mickelson Co. for the month of March are shown below. Prepare a tabular analysis that shows the effects of these transactions on the expanded accounting equation

Relative to the gestation period : If a 34-week gestation period baby weighs 267 grams and a 40-week gestation period baby weighs 3175 grams, find the corresponding z-scores. Which baby weighs more more relative to the gestation period?

User Account

All Pages