A small publisher wishes to publish self-improvement books. After a survey of the market, the publisher finds that the mean cost of the type of book that she wishes to publish is $15.00. If she wants...

A small publisher wishes to publish self-improvement books. After a survey of the market,
the publisher finds that the mean cost of the type of book that she wishes to publish is
$15.00. If she wants to price her books to sell in the middle 34% range, what should the
maximum and minimum prices of the books be? The standard deviation is $0.25 and the
self-improvement books are normally distributed.