Residents of Large Urban Cities Often Complain About the Lack

Residents of large urban cities often complain about the lack of parking and overpriced parking tickets.The mayor of Washington,DC,is doing a study to find out the 25% trimmed mean of all parking tickets received by residents in 1 year.A sample of 50 residents yielded a 25% trimmed mean of $150.00 and the bootstrap standard error is $23.00.What is the distribution of the critical value used to computer a 95% confidence interval?

A) t(25)
B) t(49)
C) N(0,1)
D) None of the above