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Types of Hypothesis in Research Methodology

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Questions and Answers

What is the purpose of the null hypothesis in a hypothesis test?

To serve as the original or default hypothesis (correct)

To indicate all other outcomes except the null

To be used if the null hypothesis is not accepted or rejected

To represent the actual desired conclusion of the researcher

Why is an incorrect decision on the null hypothesis considered to have a serious outcome?

Because it represents the actual desired conclusion of the researcher

Because it is the prediction for the hypothesis test (correct)

Because it will be used as a basis of an argument

Because it has not been proven yet

What does the alternative or experimental hypothesis intend to prove?

It serves as the original or default hypothesis

It represents the actual desired conclusion of the researcher

It is a prediction for the hypothesis test

It is a statement of what the hypothesis test is intended to prove (correct)

In a hypothesis test, when is the alternative hypothesis used?

When the null hypothesis is not accepted or rejected Signup and view all the answers

What is a key difference between the null and alternative hypotheses?

The null hypothesis serves as the original or default hypothesis, while the alternative does not Signup and view all the answers

Which statement best describes a null hypothesis in a hypothesis test?

It serves as the original or default hypothesis Signup and view all the answers

In statistical hypothesis testing, what is the purpose of the null hypothesis?

To state the opposite of what the experimenter would expect or predict Signup and view all the answers

Which type of hypothesis is a non-directional form of hypothesis?

Null hypothesis Signup and view all the answers

In a clinical trial of a new drug, if the null hypothesis is that the new drug is no better than the current drug, what would the alternative hypothesis be?

The new drug has a different effect compared to that of the current drug Signup and view all the answers

If the final conclusion of an investigation retains a null hypothesis, what does this imply?

There might not be enough evidence against the null hypothesis Signup and view all the answers

What does the alternative hypothesis represent in statistical hypothesis testing?

It suggests a potential outcome that the researcher may expect Signup and view all the answers

What does it mean when an investigator concludes 'do not reject H0' in statistical hypothesis testing?

There is not enough evidence against H0 in favor of H1 Signup and view all the answers

What conclusion can be drawn if the null hypothesis is rejected in statistical hypothesis testing?

'reject H0 in favor of H1' implies that H1 may be true Signup and view all the answers

What type of alternative hypothesis comes from prior literature or studies?

'Directional Hypothesis' Signup and view all the answers

What statement characterizes a null hypothesis?

'It states the opposite of what the experimenter would expect or predict' Signup and view all the answers

'Not rejecting Ho' does NOT necessarily mean:

'That Ho is true' Signup and view all the answers