Author Question: For the given data, the value of the mean square error is ________. A) 2,444,136.45 B) 1,563.37 ... (Read 73 times)

dbose · **on:** Jun 24, 2018

For the given data, the value of the mean square error is ________.

A) 2,444,136.45
B) 1,563.37
C) 1,341.46
D) 14.78

Question 2

The national sales manager for a textbook publishing company wishes to estimate the mean number of books sold per college. She wishes to have her estimate be within 30 copies and wants a 95 percent confidence interval estimate.

If a pilot sample of 30 schools gave a sample standard deviation equal to 60 books, the required total sample size is less than the pilot sample already taken. Indicate whether the statement is true or false