16 Questions
What is the purpose of the null hypothesis in a hypothesis test?
To serve as the original or default hypothesis
Why is an incorrect decision on the null hypothesis considered to have a serious outcome?
Because it is the prediction for the hypothesis test
What does the alternative or experimental hypothesis intend to prove?
It is a statement of what the hypothesis test is intended to prove
In a hypothesis test, when is the alternative hypothesis used?
When the null hypothesis is not accepted or rejected
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
Which statement best describes a null hypothesis in a hypothesis test?
It serves as the original or default hypothesis
In statistical hypothesis testing, what is the purpose of the null hypothesis?
To state the opposite of what the experimenter would expect or predict
Which type of hypothesis is a non-directional form of hypothesis?
Null hypothesis
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
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
What does the alternative hypothesis represent in statistical hypothesis testing?
It suggests a potential outcome that the researcher may expect
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
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
What type of alternative hypothesis comes from prior literature or studies?
'Directional Hypothesis'
What statement characterizes a null hypothesis?
'It states the opposite of what the experimenter would expect or predict'
'Not rejecting Ho' does NOT necessarily mean:
'That Ho is true'
This quiz covers the different types of hypotheses, including null hypotheses and alternative hypotheses, as well as their designations and representations in research methodology. It also discusses the significance of hypotheses in forming theories and arguments.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
