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 19:30, zetrenne73

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax

Answers: 2

continue

Mathematics, 21.06.2019 19:50, electrofy456

What is the result of the following division?

Answers: 1

continue

Mathematics, 21.06.2019 20:30, anniekwilbourne

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

Answers: 3

continue

Mathematics, 21.06.2019 22:30, lauralimon

What is the approximate value of q in the equation below? –1.613–1.5220.5853.079

Answers: 1

continue

You know the right answer?

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