Suppose a radio station desires to estimate the proportion of the market they hold with a maximum error of 1% and a confidence of 95%. How large
a sample would be required to estimate the % of listeners to within the
desired level of accuracy? Assume that the sample percentage is 11.7%
(taken from a previous study).
Show calculations.

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.