Arnold Bicep, physical fitness director for the Louisville public school system, would like to argue that a mandatory physical fitness class be required for all students. He thinks that student are at least 15 pounds overweight. To test his supposition, he takes a sample of 25 students; these students are on the average 17.4 pounds overweight with a standard deviation of 31.

s. e. =

Select the correct answer below, based upon your calculations, check all the correct statement(s) below.

It is quite likely that this sample could have been drawn from a population with a mean of 15.

It is quite unlikely that this sample could have been drawn from a population with a mean of 15.

The average student may well be 15 pounds overweight and could even be heavier.

The average student is less than 15 pounds overweight.s. e. =