Mathematics, 27.02.2020 04:10, adriana145

A population consists of two strata, h and L, of sizes 100,000and 500,000 and standard deviations 20 and 12, respectively. A Stratified sample of size 100 is to be taken.

a) Find the optimal allocation for estimating the populationmean

b) Find the optimal allocation for estimating the differenceof the means of the strata,μH-μL.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:10, itsme123427

True or false? many triangular shapes can be circumscribed about a given circle

Answers: 2

continue

Mathematics, 21.06.2019 15:30, mine9226

Arestaurant needs to buy thirty-seven new plates. if each box has five plates in it, how many boxes will they need to buy?

Answers: 1

continue

Mathematics, 21.06.2019 16:00, mikey8510

Three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder ( ! : ”0 )

Answers: 3

continue

Mathematics, 22.06.2019 00:30, carriboneman

"which statement is necessarily true if bd is an altitude to the hypotenuse of right ? abc? a.) ? adb? ? bdc b.) ? adb~? bdc c.) abbc=acbd d.) ? bac? ? bdc"

Answers: 3

continue

Do you know the correct answer?

A population consists of two strata, h and L, of sizes 100,000and 500,000 and standard deviations 20...