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

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

Q. 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

Q. 3

What is the standard deviation of the X index fund?
 
  A) 3.07
  B) 2.79
  C) 3.27
  D) 2.69

Q. 4

The Sergio Lumber Company manufactures plywood. One step in the process is the one where the veneer is dried by passing through a huge dryer (similar to an oven) where much of the moisture in the veneer is extracted.
 
  At the end of this step, samples of veneer are tested for moisture content. It is believed that pine veneer will be less moist on average than will fir veneer. The hypothesis test that will be conducted using an alpha = 0.05 level will be a two-tailed test. Indicate whether the statement is true or false