Alternative hypothesis

October 6, 2025 - The statement that is being tested against the null hypothesis is the alternative hypothesis. Alternative hypothesis is often denoted as Ha or H1. In statistical hypothesis testing, to prove the alternative hypothesis is true, it should be shown that the data is contradictory to the null hypothesis.

January 24, 2025 - The alternative hypothesis is the complement to the null hypothesis. Null and alternative hypotheses are exhaustive, meaning that together they cover every possible outcome. They are also mutually exclusive, meaning that only one can be true at a time. TipBe careful with your words when you report the results of a statistical test in a research paper or thesis.

August 16, 2024 - The alternative hypothesis often is the statement you test when attempting to disprove the null hypothesis. If you can gather enough data to support the alternative hypothesis, it replaces the null hypothesis.Statisticians and researchers use alternative and null hypotheses when conducting research in a variety of industries, including:

Alternative Hypothesis (Ha) – This is also known as the claim. This hypothesis should state what you expect the data to show, based on your research on the topic. This is your answer to your research question. ... Null Hypothesis: H0: There is no difference in the salary of factory workers ...

August 28, 2019 - The alternative hypothesis is a statement used in statistical inference experiment. It is contradictory to the null hypothesis and denoted by Ha or H1. We can also say that it is simply an alternative to the null.

August 30, 2025 - It is a working statement or theory that is based on insufficient evidence. While experimenting, researchers often make a claim, that they can test. These claims are often based on the relationship between two or more variables. "What causes what?" and "Up to what extent?" are a few of the questions that a hypothesis focuses on answering. The hypothesis can be true or false, based on complete evidence. While there are different hypotheses, we discuss only null and alternate hypotheses.

They are called the null hypothesis and the alternative hypothesis. These hypotheses contain opposing viewpoints. H0: The null hypothesis: It is a statement about the population that either is believed to be true or is used to put forth an argument unless it can be shown to be incorrect beyond a reasonable doubt.

The goal of an experiment is to find statistical evidence to refute or nullify the null hypothesis in order to support the alternative hypothesis (Rosenthal and Rosnow, 2008). Some experiments may have several pairs of null hypotheses and alternative hypotheses. The characteristics of null and alternative hypotheses can be better explained through the following hypothetical research ...

January 13, 2016 - The alternative hypothesis is the hypothesis that the researcher is trying to prove. In the Mentos and Diet Coke experiment, Arnold was trying to prove that the Diet Coke would explode if he put Mentos in the bottle.

The null and alternative hypotheses are two mutually exclusive statements about a population. A hypothesis test uses sample data to determine whether to reject the null hypothesis. ... The null hypothesis states that a population parameter (such as the mean, the standard deviation, and so on) is equal to a hypothesized value. The null hypothesis is often an initial claim that is based on previous analyses or specialized knowledge.

October 6, 2024 - The alternate hypothesis is usually what you will be testing in hypothesis testing. It’s a statement that you or another researcher) thinks is true and one that can ultimately lead you to reject the null hypothesis and replace it with the alternate hypothesis.

January 2, 2025 - An alternative hypothesis in statistics refers to a proposed statement or argument in the hypothesis test. It indicates the existence of the statistical relationship between variables and usually aligns with the research hypothesis.

May 14, 2025 - Researchers generally denote the null hypothesis as H0. It states the exact opposite of what an investigator or an experimenter predicts or expects. It basically defines the statement which states that there is no exact or actual relationship between the variables. Researchers generally denote the alternative hypothesis as H1.

March 27, 2020 - In medicines development one might for example formulate the hypothesis that a new treatment for a disease is better than the existing standard of care treatment. If the new treatment is called ‘B’, and the standard of care treatment is called ‘A’ then the hypothesis states that ‘B’ is better than ‘A’. This hypothesis would be referred to as the alternative hypothesis. It is also known as the ‘research hypothesis’.

3 weeks ago - It contradicts the null hypothesis (H0), which states there is no significant difference. The alternative hypothesis is what the researcher believes to be true and aims to demonstrate through the experiment or analysis.

June 8, 2025 - The alternative hypothesis is a key concept in statistical hypothesis testing. It proposes that there is a significant effect or difference in a population, challenging the assumption made by the null hypothesis. Researchers aim to find evidence supporting the alternative hypothesis to validate ...

July 4, 2025 - When researchers conduct experiments or tests, they use the alternative hypothesis to propose what they expect to find—such as a new treatment working better than the current one, or a relationship existing between two factors. If the evidence from the data is strong enough, the alternative hypothesis is supported, indicating that the observed results are unlikely to be due to chance alone.

In a statistical test, observed data is used to decide whether or not to reject a restriction on the data-generating probability distribution. The assumption that the restriction is true is called null hypothesis, while the statement that the restriction is not true is called alternative hypothesis.