A consumer advocate is comparing income for a wide variety of jobs between the South and the Northeast.The average income of a simple random sample of 800 jobs in the Northeast is compared to the average income of a simple random sample of 750 jobs in the South.From the collected data,950 resamples are taken.Each time,750 incomes are selected with replacement from the data collected from the South,and 800 incomes are selected with replacement from the data collected from the Northeast.The distribution of the difference in means based on the resamples is shown below (in thousands of dollars). What type of resampling method was used in this scenario?
A)Bootstrap
B)Permutation
C)Neither bootstrap nor permutation

Question

A consumer advocate is comparing income for a wide variety of jobs between the South and the Northeast.The average income of a simple random sample of 800 jobs in the Northeast is compared to the average income of a simple random sample of 750 jobs in the South.From the collected data,950 resamples are taken.Each time,750 incomes are selected with replacement from the data collected from the South,and 800 incomes are selected with replacement from the data collected from the Northeast.The distribution of the difference in means based on the resamples is shown below (in thousands of dollars).  What type of resampling method was used in this scenario?
A)Bootstrap 
B)Permutation 
C)Neither bootstrap nor permutation

Quizplus · Accepted Answer

The scenario involves selecting samples with replacement from the original data set, which is the key characteristic of the bootstrap resampling method. Therefore, the correct choice is A. Permutation involves rearranging the observed data points, which is not applicable in this scenario.

A Consumer Advocate Is Comparing Income for a Wide Variety