Mathematics, 28.01.2020 10:31, kperez1186

Amedical researcher wants to determine the percentage of females who take vitamins. he wishes to be 99% confident the estimate is within 2% points of the true proportion. a recent study of 180 females showed that 25% took vitamins.

a) how large should the sample size be?

b) if no estimate of the sample proportion is available how large should the sample be?

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, nisazaheer

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Answers: 1

continue

Mathematics, 21.06.2019 20:20, leximae2186

Consider the following estimates from the early 2010s of shares of income to each group. country poorest 40% next 30% richest 30% bolivia 10 25 65 chile 10 20 70 uruguay 20 30 50 1.) using the 4-point curved line drawing tool, plot the lorenz curve for bolivia. properly label your curve. 2.) using the 4-point curved line drawing tool, plot the lorenz curve for uruguay. properly label your curve.

Answers: 2

continue

Mathematics, 21.06.2019 22:00, prelogical

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

Answers: 1

continue

Mathematics, 21.06.2019 22:10, oijhpl5085

Using graph paper, determine the line described by the given point and slope. click to show the correct graph below.(0, 0) and 2/3

Answers: 2

continue

Do you know the correct answer?

Amedical researcher wants to determine the percentage of females who take vitamins. he wishes to be...