Introduction to two-tailed hypothesis test

Reference no: EM13100342

A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population with a mean of µ = 80 and a standard deviation of σ = 20. The researcher expects a 12 point treatment effect and plans to use a two-tailed hypothesis test with u α = .05

a. Compute the power of the test if the researcher uses a sample of n = 16 individuals.

b. Compute the power of the test if the researcher uses a sample of n = 25 individuals.

Reference no: EM13100342

Questions Cloud

Random probability-survey of balding middle-aged men : A survey of middle-aged men reveals that 28% of them are balding at the crown of their heads. Moreover, it is known that 18% of all middle-aged men who have this balding pattern will suffer a heart attack in the next 10 years.

Determine the multifactor productivity : As part of a study for the Department of Labor Statistics, you are assigned the task of evaluating the improvement in productivity of small businesses.

Explain role of economics-family-religion in suicide bombers : Study the difference between male and female suicide bombers. Consider how economics, religion, family and society play role in these differences.

Inference about population proportion : Spinning a coin, unlike tossing it, may not give heads and tails equal probabilities. I spun a penny 200 times and got 83 heads. How significant is this evidence against equal probabilities?

Introduction to two-tailed hypothesis test : A researcher is evaluating the influence of a treatment using a sample selected from a normally distributed population with a mean of µ = 80 and a standard deviation of σ = 20. The researcher expects a 12 point treatment effect and plans to use a ..

Calculate the free energy of transfer : Calculate the free energy of transfer involved in the hypothetical transfer of electrons from complex 1 to complex 4. The electron reduction potential of complex 1 in -0.32V. Complex 2 is +0.03V. Complex 3 is +0.04V. Complex 4 is +0.23V.

Discuss the ethical implications of reverse engineering : What are the ethical implications of reverse engineering.. Is it leagal, moral.. Please discuss this topic with your personal and believe system.

Determining insurance net gain : An insurance company sells $300 deductible annual automobile insurance policies to a certain category (age, driving records) for $1000.00 The insurance company has set four different accident types

Calculate the total number of atp molecules : Calculate the total number of ATP molecules that will be produced upon complete breakdown of one C18 fatty acid molecule. Which would produce more ATP, this process, or the breakdown of 1 glucose molecule.

User Account

All Pages