Move the slider to select a new problem.
Check the box to see the answer.

There will be a problem like this on Test 4
and possibly the final exam.
Note that the result of the formula is rounded up
to the next integer if there is any non-zero digit
to the right of the decimal point.
This applet is based on examples #13, #14 p.359,
problems #51(b), #52(b) p.364, #12 p.399 and #13 p.400
of Navidi and Monk, "Elementary Statistics", 2nd edition,
McGraw-Hill Education 2016.
Updated June 28, 2012, Oct. 2, 2013,
and Sept. 11, 2015.