Mathematics, 18.10.2019 20:40 ladydeathanddea

The mean body mass index (bmi) for boys aged 12 is 23.6. an investigator wants to test whether the bmi is higher in boys aged 12 living in new york city. how many boys are needed to ensure that a two-sided test of hypothesis has 80% power to detect a difference of 2 units in bmi? assume that the standard deviation in bmi is 5.7.

Answers: 3

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 18:30

Factor k2 - 17k + 16. a.(k - 2)(k - 8) b.(k - 1)(k + 16) c.(k - 1)(k - 16)

Answers: 1

Answer

Mathematics, 21.06.2019 22:30

Pls never taught i’m really confused and i rlly need

Answers: 1

Answer

Mathematics, 21.06.2019 23:30

Write a similarity statement for the similar triangles. afgh ~ a

Answers: 1

Answer

Mathematics, 22.06.2019 00:30

Neal buys a board game. he pays for the board game and pays $1.54 in sales tax. the sales tax rate is 5.5%. what is the original price of the board game, before tax

Answers: 3

Answer

You know the right answer?

The mean body mass index (bmi) for boys aged 12 is 23.6. an investigator wants to test whether the b...

Questions

Mathematics, 13.07.2019 17:10

Roger has a 0.250 batting average. if he went up to bat 240 times, how many times did he fail to get any hits? (a 0.250 batting average means that he...

Physics, 13.07.2019 17:10

4. a 1,000-kilogram satellite completes a uniform circular orbit of radius 8.0 x 10 meters asmeasured from the center of earth. the mass of eart...

Mathematics, 13.07.2019 17:10

What is the formula of (x^3 + y^3) as a factorized form?...

Mathematics, 13.07.2019 17:10

How do you answer number 23, explain and show the solutions

Mathematics, 13.07.2019 17:10

Find the length of wire required to fence a rectangle field with three round, whose length and breadth are 150 m and 80m respectively...

Physics, 13.07.2019 17:10

It takes 0.16 g of helium (he) to fill a balloon. how many grams of nitrogen (n2) would be required to fill the balloon to the same pressure, volume,...

Mathematics, 13.07.2019 17:10

Jack typed 80 words per minute when he enrolled in a typing course. his typing speed increased by 3% two weeks into the course. at the end of the cour...

Computers and Technology, 13.07.2019 17:10

Ith reference to mccall's quality modle , what are the three important aspects of a software product ?...

Physics, 13.07.2019 17:10

J-s. if your 1400-kg car is parked in an 8.54-m-long garage, what is the uncertainty in its velocity? cm/s the tolerance is +/-2%...

Mathematics, 13.07.2019 17:10

Jerry king is a server in a restaurant that pays a salary of $43 per day. he also averages tips of 18% of his total gross food orders. last week he wo...

Physics, 13.07.2019 17:10

It turns out that mercury and mars have the same gravity as one another – that is, you would weigh the same on the surface of mercury as you would on...

Physics, 13.07.2019 17:10

J8. over several cycles, a refrigerator compressor does work on the refrigerant. this work is equivalent to a constant pressure of 413 × 105 pa compre...

Mathematics, 13.07.2019 17:10

James is able to sell 15 of product a and 16 of product b a week, sally is able to sell 25 of product a and 10 of product b a week, and andre is able...

Chemistry, 13.07.2019 17:10

Jd group produces two types of desks: standard and executive. these desks are sold to russell's furniture and for all practical purposes, there in an...

Mathematics, 13.07.2019 17:10

Jacob purchased a long-term care policy on december 1 and suffered a severe stroke on january 1. his policy has a 30-calendar-day elimination period....

Medicine, 13.07.2019 17:10

J. r., age 32 years, noticed a lump on the side of his neck a few months ago. the lump is relatively large, painless, and not tender to the touch. a f...

Computers and Technology, 13.07.2019 17:10

Jk is equal to (x squared - 4x). kl is equal to (3x-2). jl=28. how do you find out what x...

Mathematics, 13.07.2019 17:10

Justin's hot water tank quits working and the landlor d purchase is the volume of a cylindrical water tank with a diameter of 4 feet and a height of 6...

Medicine, 13.07.2019 17:10

Jane has been following the night shift nurse for the past two days and each time she comes in, she feels like she is over-burdened with tasks left ov...

Mathematics, 13.07.2019 17:10

Jill has a swimming pool in her backyard. it is shaped like a rectangle and measures approximately 16.3 feet wide and 26.2 feet long. it is an average...

More questions: Mathematics Another questions