What minimum sample size is needed for a study on average CD prices if the average price is $14.00 and you want to be within 50 cents of the true mean. You know the
standard deviation is $1.30 and you want 99% confidence.

Mozart lenses inc. recently introduced seelites, a thinner lens for eyelasses. of a sample of 800 eyeglass wearers, 246 said they would purchases their next pair of eyeglasses with the new lenses. lenses inc. estimates that the number of people who purchase eyeglasses in a year is 1,700,000. most eyeglasses wearer buy one new pair of eyeglasses a year. what is the annual sales potential for the new lenses.

Which inequality is equivalent to -3x < -12? x < 4 , x < -4 , x > 4, x > -4

Apatient is to be given 35 milligrams of demerol every 4 hours. you have demerol 50 milligrams/milliliter in stock. how many milliliters should be given per dose?