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for a certain airline are investigating the weight of carry-on bags. The researc

ID: 3058366 • Letter: F

Question

for a certain airline are investigating the weight of carry-on bags. The researchers will use stimate the mean weight of all carry-on bags for Researchers working the mean weight of a random sample of 800 carry-on bags to e the airline. Which of the following best describes the effect on the bias and the variance of the estimator if the researchers increase the sample size to 1,300? (A) The bias will decrease and the variance will remain the same. (B) The bias will increase and the variance will remain the same. (C) The bias will remain the same and the variance will decrease. (D) The bias will remain the same and the variance will increase. (E) The bias will decrease and the variance will decrease.

Explanation / Answer

for a certain airline are investigating the weight of carry-on bags. The researchers will use stimate the mean weight of all carry-on bags for Researchers working the mean weight of a random sample of 800 carry-on bags to e the airline. Which of the following best describes the effect on the bias and the variance of the estimator if the researchers increase the sample size to 1,300? (A) The bias will decrease and the variance will remain the same. (B) The bias will increase and the variance will remain the same. (C) The bias will remain the same and the variance will decrease. (D) The bias will remain the same and the variance will increase. (E) The bias will decrease and the variance will decrease.