Null hypothesis and one-tailed-two-tailed test

Assignment Help Basic Statistics
Reference no: EM13110524

A researcher is looking at the relationship between home-schooling and achievement. She is hypothesizing that the home-schooled children will score higher than non home-schooled children on a standardized achievement test.

a. What is the null hypothesis?

b. What is the alternative hypothesis? (Remember that every possibility must be covered between these two hypotheses).

c. Is this a one-tailed or a two-tailed test?

d. Write the alternative hypothesis so that it is a one-tailed test.

e. Write it as a two-tailed test.

Reference no: EM13110524

Questions Cloud

Briefly discuss the irs position on reasonable compensation : Briefly discuss the IRS s position on reasonable compensation for owner-employees of closely held C-corporations.
Describe the permeability properties of the axon membrane : Describe the permeability properties of the axon membrane when the nerve is at rest and the permeability properties during the production of an action potential.
Hypothesis testing-before and after : The amount of income spent on housing is an important component of the cost of living. The total costs of housing for homeowners might include mortgage payments, property taxes, and utility costs (water, heat, electricity).
Estimate average amount of money country spends on road : Researcher wants to estimate in $300 true average amount of money country spends on road repairs each year. If she wishes to be 90% confident, how large sample is essential?
Null hypothesis and one-tailed-two-tailed test : A researcher is looking at the relationship between home-schooling and achievement. She is hypothesizing that the home-schooled children will score higher than non home-schooled children on a standardized achievement test.
One tailed and two tailed alternative : For each of the following hypotheses, decide whether a one-tailed or two-tailed test would be performed: Children with birth defects will score differently than the normal population on a measure of self-esteem.
Figure out how to determine gene order : You find two mutations that cause blue wings (b blue is recessive to b+ normal) and spiny bristles (W wiry is dominant to W+ normal). They are linked to this chromosome (pictured). Based on test cross data, complete the map to include these genes.
Null hypothesis-alternative hypothesis-investigative : For the following investigative scenarios, state the null hypothesis, and the alternative hypothesis. Also identify the Type 1 and Type 2 errors which can result based on the hypotheses that you defined.
What is one such mrna sequence : How many DNA and RNA sequences are possible that give you this protein sequence?

Reviews

Write a Review

Basic Statistics Questions & Answers

  To test the independence of attributes

Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.

  Confidence interval for the true average number of months

Compute a 99% confidence interval for the true average number of months taken by bankruptcy petitioners to acquire debts listed on their petitions.

  Presently cleaned also identified define the probability

At 1 excavation site 8641 pot shards have been found that have not presently been cleaned also identified. Define the probability.

  Logistic regression using the enter method

In considering doing a logistic regression using the Enter method, it was suggested that I may want to consider doing a sequential LSR or stepwise logistic regression instead.

  Describing step of analytical hierarchy process

First step of analytical hierarchy process doesn't include?

  Least squares linear trend line

A least squares linear trend line is just a simple regression line with the independent variable being time (months or years for example).

  Probability and mean-standard deviation

The personnel office at a large electronics firm regularly schedules job interviews and maintains records of the interviews. From the past records

  Allocating assets among different investment choices

An issue that faces individuals investing for retirement is allocating assets among different investment choices. A study conducted 10 years ago showed that 65% of investors preferred stocks to real estate as an investment.

  Joint and marginal probability mass functions

A fair coin is tossed four times and X is number of heads on first three tosses and Y on last three. What is the joint probability mass function of x and y? What is the marginal pmf? Are X and Y independent?

  Setting hypotheses for computing population variance

Set up hypotheses and test to find out whether or not population variance is larger than $100.

  Least squares line prediction

If someone had x=2 job changes, what does the least squares line predict for y, the annual salary?

  Altman z score for general motors

Calculate GM's Altman Z-Score. Show your calculations. Based on your calculations, would you agree or disagree with Lutz that GM is over the worst? Explain in detail.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd