Statistical Hypothesis Testing and P-Value
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Questions and Answers

What is the primary concern when assessing associations between variables in research?

  • The presence of an association (correct)
  • The type of association
  • The magnitude of the association
  • The direction of the association

    • What is the null hypothesis stating in a given research scenario?

  • The association is only present in the sample
  • There is a moderate association between the variables
  • The variables are not linked in the population (correct)
  • There is a significant association between the variables

    • What is the main goal of statistical hypothesis testing in research?

  • To infer whether an association exists or not in the population (correct)
  • To determine the direction of an association
  • To determine the magnitude of an association
  • To determine the type of association

    • How many possibilities are there for any given association between two variables?

    <p>Two</p> Signup and view all the answers

    What is the significance of a 95% Confidence Interval in statistical hypothesis testing?

    <p>It is used to infer statistical significance</p> Signup and view all the answers

    What does the p-value represent in the context of hypothesis testing?

    <p>The probability of obtaining an association as strong or stronger as the one observed in our sample, assuming no association exists in the population</p> Signup and view all the answers

    What is the typical significance level used in hypothesis testing?

    <p>5%</p> Signup and view all the answers

    What is the relationship between the strength of the association and the p-value?

    <p>The stronger the association, the lower the p-value</p> Signup and view all the answers

    What is the purpose of the p-value in the context of hypothesis testing?

    <p>To quantify the evidence against the null hypothesis</p> Signup and view all the answers

    What happens to the p-value as the association in the sample becomes stronger?

    <p>The p-value decreases</p> Signup and view all the answers

    What is the primary purpose of formulating the Null and Alternative hypotheses in a research study?

    <p>To determine whether there is enough evidence to reject the Null hypothesis</p> Signup and view all the answers

    What is the inherent error present in a sample estimate referred to as?

    <p>Random error</p> Signup and view all the answers

    What is the significance level in hypothesis testing used to define?

    <p>The amount of evidence required to reject the Null hypothesis</p> Signup and view all the answers

    In hypothesis testing, what is the primary assumption about the population?

    <p>There is no association between the two variables</p> Signup and view all the answers

    What is the purpose of statistical analysis in hypothesis testing?

    <p>To quantify the random error present in the sample estimate</p> Signup and view all the answers

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