Podcast
Questions and Answers
Which type of statistical analysis is used to compare the averages of two groups and determine if the differences between them are more likely to arise from random chance?
Which type of statistical analysis is used to compare the averages of two groups and determine if the differences between them are more likely to arise from random chance?
- ANOVA
- Regression analysis
- Chi-square test
- t-test (correct)
What distribution does the test statistic follow under the null hypothesis in a t-test?
What distribution does the test statistic follow under the null hypothesis in a t-test?
- Uniform distribution
- Exponential distribution
- Poisson distribution
- Normal distribution (correct)
When does the test statistic in a t-test follow a Student's t distribution?
When does the test statistic in a t-test follow a Student's t distribution?
- When the scaling term is known
- When the sample size is small
- When the scaling term is estimated based on the data (correct)
- When the sample size is large
What is the most common application of a t-test?
What is the most common application of a t-test?
When was the t-distribution first derived as a posterior distribution?
When was the t-distribution first derived as a posterior distribution?
Which statistical test is used on paired nominal data?
Which statistical test is used on paired nominal data?
What does sensitivity measure in a diagnostic test?
What does sensitivity measure in a diagnostic test?
What does specificity measure in a diagnostic test?
What does specificity measure in a diagnostic test?
What is the purpose of the transmission disequilibrium test?
What is the purpose of the transmission disequilibrium test?
What is the name of the person who introduced McNemar's test?
What is the name of the person who introduced McNemar's test?
Which type of data is McNemar's test used for?
Which type of data is McNemar's test used for?
What does McNemar's test determine in a 2x2 contingency table?
What does McNemar's test determine in a 2x2 contingency table?
What are the commonly used parameters to assess a diagnostic test in medical sciences?
What are the commonly used parameters to assess a diagnostic test in medical sciences?
What does sensitivity measure in a diagnostic test?
What does sensitivity measure in a diagnostic test?
What does specificity measure in a diagnostic test?
What does specificity measure in a diagnostic test?
Which of the following statements about Kendall's W is true?
Which of the following statements about Kendall's W is true?
What does a Kendall's W of 0 indicate?
What does a Kendall's W of 0 indicate?
In what range does Kendall's W lie when there is complete agreement among respondents?
In what range does Kendall's W lie when there is complete agreement among respondents?
What is Kendall's W used for?
What is Kendall's W used for?
What does a Kendall's W of -1 indicate?
What does a Kendall's W of -1 indicate?
