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Understanding Null and Alternative Hypotheses in Statistical Testing

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Understanding Null and Alternative Hypotheses in Statistical Testing

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Questions and Answers

What is the purpose of the null hypothesis?

To be used if the alternative hypothesis is rejected

To predict all other outcomes except the null

To serve as the default hypothesis in statistical testing (correct)

To represent the researcher's actual desired conclusion

How is the alternative hypothesis different from the null hypothesis?

It represents the researcher's actual desired conclusion

It is the default hypothesis in statistical testing

It is used if the null hypothesis is accepted or not rejected

It predicts all other outcomes except the null (correct)

What serious outcome is associated with the null hypothesis?

It represents the researcher's actual desired conclusion

It results in an incorrect decision if accepted (correct)

It leads to a conclusion opposite of the null hypothesis

It predicts all other outcomes except the null

When is the alternative hypothesis reached?

When the null hypothesis is rejected Signup and view all the answers

Which symbol is used to designate the alternative hypothesis?

HA Signup and view all the answers

In a clinical trial of a new drug, what does the alternative hypothesis suggest?

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

Which statement best describes a null hypothesis?

It represents a theory that has not been proven Signup and view all the answers

What is the purpose of the null hypothesis in statistical hypothesis testing?

To provide a testable statement about the relationship between variables Signup and view all the answers

What does it mean when researchers 'do not reject H0' in a hypothesis test?

There is not enough evidence to reject the null hypothesis Signup and view all the answers

What type of hypothesis is the null hypothesis?

Testable statement about the relationship between variables Signup and view all the answers

What is the alternative hypothesis based on?

Potential outcome suggested by prior literature Signup and view all the answers

When a research study concludes 'do not reject H0', what does this suggest?

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

What does the alternative hypothesis relate to?

'H0' statement to be accepted if 'H1' is rejected Signup and view all the answers

What is a key characteristic of a null hypothesis?

'H0' does not relate to the statement being tested Signup and view all the answers

What is the purpose of an alternative hypothesis?

'H1' suggests a potential outcome based on prior literature Signup and view all the answers

'Directional Hypothesis' is a type of:

'H1' or HA Signup and view all the answers